Tesztberendezés alkatrészei és tartozékai

Product Description
1. Ultra-micro volume: 23*24MM
2. Noise suppression, when the input audio is not connected, no noise can be heard when the ear is close to the speaker
3. Two-channel stereo, 5V power supply can output 5W 5W power, can directly drive 4Ω, 8Ω small speakers, with high output power, sufficient energy, good sound quality, with left and right channel volume adjustment.
4. The unique Class D digital power board without LC filter can be directly powered by the computer's USB.
5. Double-panel wiring, properly solve the ground potential balance and crosstalk between channels caused by wiring
6. Ultra-micro design, it can be easily placed in the small internal space of various digital products, and the magnification efficiency is super high.
7. All machines are used for the whole board welding, and the welding quality is comparable to non-manual iron welding!
8. The rated working voltage is 2.5-5V, and the ultimate working voltage is 5.5V.
Note: The "negative" of the left and right channel output terminals cannot be connected together, otherwise the IC will be burned, and the speaker (load) should be connected before power on.

Specifications
Model: W1209
Dimensions: 48 * 40mm
Temperature control mode: ON / OFF
Temperature range :-50-110
ResolutionWhen temperature is 0.1 the resolution is -9.9~99.9, other temperature segment is 1
Control accuracy: 0.1
Hysteresis accuracy: 0.1
Refresh rate: 0.5S
High temperature protection 0-110
Supply voltage: for DC 12V
Static current: ≤ 35MA, attract current ≤ 65MA
Output voltage: for DC 12V
Output power: 10A relay
Measurement input: NTC (10K 0.5% ) Waterproof Sensor
Environmental requirements: -10 ~ 60 Humidity 20% -85

Specifications
Model: W1209
Dimensions: 48 * 40mm
Temperature control mode: ON / OFF
Temperature range :-50-110
ResolutionWhen temperature is 0.1 the resolution is -9.9~99.9, other temperature segment is 1
Control accuracy: 0.1
Hysteresis accuracy: 0.1
Refresh rate: 0.5S
High temperature protection 0-110
Supply voltage: for DC 12V
Static current: ≤ 35MA, attract current ≤ 65MA
Output voltage: for DC 12V
Output power: 10A relay
Measurement input: NTC (10K 0.5% ) Waterproof Sensor
Environmental requirements: -10 ~ 60 Humidity 20% -85

Specifications
Model: W1209
Dimensions: 48 * 40mm
Temperature control mode: ON / OFF
Temperature range :-50-110
ResolutionWhen temperature is 0.1 the resolution is -9.9~99.9, other temperature segment is 1
Control accuracy: 0.1
Hysteresis accuracy: 0.1
Refresh rate: 0.5S
High temperature protection 0-110
Supply voltage: for DC 12V
Static current: ≤ 35MA, attract current ≤ 65MA
Output voltage: for DC 12V
Output power: 10A relay
Measurement input: NTC (10K 0.5% ) Waterproof Sensor
Environmental requirements: -10 ~ 60 Humidity 20% -85

Specifications
Model: W1209
Dimensions: 48 * 40mm
Temperature control mode: ON / OFF
Temperature range :-50-110
ResolutionWhen temperature is 0.1 the resolution is -9.9~99.9, other temperature segment is 1
Control accuracy: 0.1
Hysteresis accuracy: 0.1
Refresh rate: 0.5S
High temperature protection 0-110
Supply voltage: for DC 12V
Static current: ≤ 35MA, attract current ≤ 65MA
Output voltage: for DC 12V
Output power: 10A relay
Measurement input: NTC (10K 0.5% ) Waterproof Sensor
Environmental requirements: -10 ~ 60 Humidity 20% -85

Description
For this monster shield we've replaced the L298 H-bridge with a pair of VNH2SP30 full-bridge motor drivers. We've also beefed up the support circuitry so this board is capable of driving a pair of high-current motors! The VIN and motor out are pitched for our 5mm screw terminals (not included), making it easy to connect larger gauge wires.
Note:When using this board in extreme high-demand applications it may be necessary to improve thermal performance with a heat-sink or fan and to solder the wires directly to the board instead of using a screw terminal (in addition to the myriad other complications present in a high-current system) However, when using the board at currents up to 6A the chips will barely become noticeably warm.
Features:
Voltage max: 16V
Maximum current rating: 30 A
Practical Continuous Current: 14 A
Current sensing available to analog pin
MOSFET on-resistance: 19 mΩ (per leg)
Maximum PWM frequency: 20 kHz
Thermal Shutdown
Undervoltage and Overvoltage shutdown

Product Description
1).MF RC522 is applied to 13.56MHz contactless card reader communication chips a member of the high level of integration. Is NXP, for "Three Tables" application introduced a low-voltage, low-cost, small size and non-contact chip card reader is a good choice for smart meters and portable handheld devices developed.
2).MF RC522 using advanced modulation and demodulation concept completely integrated in all types of passive 13.56MHz contactless communication methods and protocols. Support ISO14443A multilayer applications. The transmitter portion of its internal communications can drive the reader antenna and ISO 14443A/MIFARE cards and answering machine, no other circuits. The receiver part provides a robust and effective demodulation and decoding circuitry for processing signals ISO14443A compatible transponders. The digital part handles ISO14443A framing and error detection (Parity & CRC). In addition, it supports fast CRYPTO1 encryption algorithm used to verify the MIFARE products. MFRC522 support MIFARE? Higher-speed non-contact communication, two-way data transfer rates up to 424kbit/s.
3).As a new member of the highly integrated 13.56MHz card reader series chip family, MF RC522 MF RC500 and MF RC530 and there are many similarities, but also have many other features and differences. It is the communication between the host and the serial communication using fewer connections, and can be based on different user needs to select one mode SPI, I2C or serial UART (similar to RS232), helps to reduce the connection, reducing the volume of PCB board and reduce costs.
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Applications
1)MF RC522 applicable to all kinds based on ISO / IEC 14443A standard and require application of low-cost, small size, high performance and power of a single non-contact communication.
2)Meter reading;
3)On-board unit;
4)Public transport terminal;
5)The portable handheld device;
6)Contactless public phones.
Parameters
Serial Supply Voltage(VCC):5V
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Mechanical Drawings
Unit:mil
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Description
Model:MIFARE RC522
Sleep Current:<80uA
Peak current:<30mA
Operating Frequency:13.56MHz
Read Range:0～45mm
Interface:UART TTL
Baud Rate:115200
Data transfer rate:Maximum10Mbit/s
Physical Characteristics:Size:50mm×50mm
Ambient operating temperature:Celsius-20—80
Storage Temperature:Celsius-40—85
Humidity:Relative Humidity 5% —95%
Agreement:Compliance with ISO14443A standard,support Mifare1 S50.S70
Precautions
Try not to be placed between the card reader and the reader when any metal objects. So as not to affect the results.

Description:
Heart Rate click carries Maxim\'s MAX30100 integrated pulse oximetry and heart-rate sensor. It\'s an optical sensor that derives its readings
from emitting two wavelengths of light from two LEDs - a red and an infrared one - then measuring the absorbance of pulsing blood through a
photodetector. This particular LED color combination is optimized for reading the data through the tip of one\'s finger. The signal is
processed by a low-noise analog signal processing unit and communicated to the target MCU through the mikroBUS I2C interface. Developers of
end-user applications should note that the readings can be negatively impacted by excess motion and changes in temperature. Also, too much
pressure can constrict capillary blood flow and therefore diminish the reliability of the data. A programmable INT pin is also available. Uses

Feature:
It supports text messaging, phone, GPRS data,HTTP protocol support, DTMF decoding, MMS, recording function, Bluetooth, TTS function and so on
Power supply: 5V-20V, please supply 2A or more current when using 5V power.
Power supply interface: 2.54MM pin or MICRO USB interface.
Suitable for Raspberry Pi.
Specification:
Interface: UART TTL level interface
Baud rate: adaptive (default), support 2400-115200
SIM Kaka seat interface: MICRO SIM Kaka stand
Antenna interface: SMA, IPX antenna interface
Working temperature: -45℃-80℃
Speech interface: 3.5MM voice Mike interface
Material: Electronic Element
Color: Blue & Silver
Size: 66*45.5*19.5mm
Package Included:
1 * GSM GPRS Module Quad-band Development Board Module with Antenna

Description
For this monster shield we\'ve replaced the L298 H-bridge with a pair of VNH2SP30 full-bridge motor drivers. We\'ve also beefed up the support circuitry so this board is capable of driving a pair of high-current motors! The VIN and motor out are pitched for our 5mm screw terminals (not included), making it easy to connect larger gauge wires.

Note: When using this board in extreme high-demand applications it may be necessary to improve thermal performance with a heat-sink or fan and to solder the wires directly to the board instead of using a screw terminal (in addition to the myriad other complications present in a high-current system) However, when using the board at currents up to 6A the chips will barely become noticeably warm.cjmcu

Features:

Voltage max: 16V
Maximum current rating: 30 A
Practical Continuous Current: 14 A
Current sensing available analog pin
MOSFET on-resistance: 19 mΩ (per leg)
Maximum PWM frequency: 20 kHz
Thermal Shutdown
Undervoltage and Overvoltage shutdown

Product Description
Note: the bluetooth module is not welded to the adapter plate
Bluetooth Stereo Audio Module Transmission BK8000L AT Commands SPP Bluetooth Speaker Amplifier DIY
Bluetooth specification Bluetooth V2.1
Supply voltage DC2.8-4.2V, le2.9V automatic shutdown, le3.1V alarm
Bluetooth protocol HFPV1.5, A2DPV1.2, AVRCPV1.4, HSP1.2, GAVDP1.2, IOP
Working current le60mA
Standby current <500uA
Temperature range -40oC ~ 85oC
Wireless transmission range le10 meters
Transmission power Class2 4dbm
Sensitivity -80dBm <0.1% BER
Frequency Range 2.4GHz ~ 2.480GHz
External Interface Serial (TTL), connected to the PC need MAX232
SBC decoding audio performance
Module size 25x13.5x1.8mm
Adapter plate size 31x25mm

Product Description
Note: the bluetooth module is not welded to the adapter plate
Bluetooth Stereo Audio Module Transmission BK8000L AT Commands SPP Bluetooth Speaker Amplifier DIY
Bluetooth specification Bluetooth V2.1
Supply voltage DC2.8-4.2V, le2.9V automatic shutdown, le3.1V alarm
Bluetooth protocol HFPV1.5, A2DPV1.2, AVRCPV1.4, HSP1.2, GAVDP1.2, IOP
Working current le60mA
Standby current <500uA
Temperature range -40oC ~ 85oC
Wireless transmission range le10 meters
Transmission power Class2 4dbm
Sensitivity -80dBm <0.1% BER
Frequency Range 2.4GHz ~ 2.480GHz
External Interface Serial (TTL), connected to the PC need MAX232
SBC decoding audio performance
Module size 25x13.5x1.8mm
Adapter plate size 31x25mm

Product Description
Note: the bluetooth module is not welded to the adapter plate
Bluetooth Stereo Audio Module Transmission BK8000L AT Commands SPP Bluetooth Speaker Amplifier DIY
Bluetooth specification Bluetooth V2.1
Supply voltage DC2.8-4.2V, le2.9V automatic shutdown, le3.1V alarm
Bluetooth protocol HFPV1.5, A2DPV1.2, AVRCPV1.4, HSP1.2, GAVDP1.2, IOP
Working current le60mA
Standby current <500uA
Temperature range -40oC ~ 85oC
Wireless transmission range le10 meters
Transmission power Class2 4dbm
Sensitivity -80dBm <0.1% BER
Frequency Range 2.4GHz ~ 2.480GHz
External Interface Serial (TTL), connected to the PC need MAX232
SBC decoding audio performance
Module size 25x13.5x1.8mm
Adapter plate size 31x25mm

Product Description
and each one needs 15-20mA driver current.
Uses two 8-channel ULN2803APG darlington arrays chip to control relay module.
It is a 16-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
It is also able to control various appliances and other equipments with large current.
Relay output maximum contact is AC250V 10A and DC30V 10A.
Standard interface can be directly connected with microcontrollers.
The working status indicator lights are conducive to the safe use.
Widely used for all MCU control, industrial sector, PLC control, smart home control.

Specifications:
Working voltage: 5V/12V/24V
Channel: 16 channel
Item size: 17.6 * 9 * 1.7cm / 6.93 * 3.54 * 0.67in

Product Description
and each one needs 15-20mA driver current.
Uses two 8-channel ULN2803APG darlington arrays chip to control relay module.
It is a 16-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
It is also able to control various appliances and other equipments with large current.
Relay output maximum contact is AC250V 10A and DC30V 10A.
Standard interface can be directly connected with microcontrollers.
The working status indicator lights are conducive to the safe use.
Widely used for all MCU control, industrial sector, PLC control, smart home control.

Specifications:
Working voltage: 5V/12V/24V
Channel: 16 channel
Item size: 17.6 * 9 * 1.7cm / 6.93 * 3.54 * 0.67in

Description
High sensitivity IR receiver
Extremely sensitive to wave between 760-1100nm
Power supply indicator lamp
Comparator output indicator lamp
AO, real-time thermister voltage signal output
DO, high / low electric level signal output
Analog quantity output
Threshold rollover electric level output
Threshold adjusted by potentiometer
Detection Angle Range: About 60 degrees
Power Supply: 0-15 V DC
Hole Inner Diameter: Approx. 3mm
Size (L x W): Approx. 36 x 16mm

Specification:
For Robot control, remote control. Information collection.
Using I2C (TWI) communication protocol, which greatly simplifies the communication process of NRF24L01.
Users do not need to understand the complicated NRF24L01 communication process
which greatly improves the development efficiency.
Adopt NRF24L01 as Wireless communications chip,reliable communication protocol and reducing data loss.
Maximum transmission distance can reach 70m (for reference only).
Specifications:
Operating voltage: 5V
Hold time of Module receives the data:more than 2S
Hold time of Module sends data:more than 300s
Transfer rate: 50Byte / S (theoretical value)
I2C/TWI Address: 0x47 (decimal 35) NRF24L01 Address: 0x34, 0x43, 0x10, 0x10, 0x01 (from low to high)
Size:44 x 23 x 12mm(L x W x H)
Color:Black

Product Description
Model: TEC1-12706.
Size: 40mm x 40mm x 3.6mm.
Working current: 4.3-4.6 A (rated 12 v); Imax: 6A.
Rated voltage: DC12V (Vmax: 15 v starting current 5.8 A).
Operates Temperature: -30° to 70°.
Refrigeration power: Qcmax 50-60 w.

Features:
Product size: 50*26*15mm
Propeller diameter: 75mm
Working voltage: 5V
L9110 drive, can control the positive and negative with the installation hole, compatible with the steering wheel of the steering gear to control the high quality propeller, high efficiency. It can easily blow out the lighter flame of 20cm and can be used for the production of fire fighting robot.
Module function test:
Hardware requirements
Controller × 1
USB data cable × 1
9110 fan module × 1
The module is connected to the development board:
The VCC of the module is connected to 5V, GND is connected to GND, INA is connected to digital interface 9, and INB is connected to digital interface 8, as shown below:

Feature :
1.Gilt PCB and Small dimension and easy to embed into your project 2.Support I2C.SPI and HSU (High Speed UART), Change between those modes 3.Support RFID reading and writing SupportP2P communication with peers Support NFC with Android phone 4.Typical Operating Distance have been updated to 5cm~7cm reading distance 5.Work in NFC Mode or RFID reader/writer Mode 6.RFID reader/writer supports: 1) 1k, 4k, Ultralight, and DesFire cards 2) ISO/IEC 14443-4 cards such as CD97BX, CD light, Desfire, P5CN072 (SMX) 3) Innovision Jewel cards such as IRT5001 card 4) FeliCa cards such as RCS_860 and RCS_854 7.Plug and play, for compatible 8.Built in PCB Antenna, with 4cm~6cm communication distance 9.On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI 10.Work as RFID reader/writer 11.Work as 1443-A card or a virtual card 12.Exchange data with other NFC devices such as smartphone Package Included: 1 x1PCS*PN532 NFC RFID Module 1x 2.54mm spacing 4pin Cable 1xMifare One S50 White Card 1xMifare One S50 Key Card 1x12P bended male pins

Description
Input voltage: DC12-15V
Output power: 20W*2
Frequency response range: 20Hz-60KHz
Work efficiency: greater than 88%
Input impedance: 10K
Output impedance: 4-8 ohms
Number of channels: left and right dual channels
Indicator light: green
Audio input: 3.5 audio port
Product size: 43*68*12mm

Describe
Power Supply: 2.1 interface DC 8 ~ 25V power supply. It will work during the range.
Suitable Adapter: 5.5mm*2.1mm
Output impedance: 8 ohm best (can drive 4,6,8,16 ohm impedance speaker)The best speaker is 8 ohm
Audio input: stereo input various versions of the Bluetooth connection
Using CSR8635 Bluetooth chip, Bluetooth V4.0, high software compatibility
How to Pair:
First, you need to check voltage whether the voltage is during DC 8-25V power supply. 12V is the best.
After charging and booting, the section will automatically get into pairing mode, search display device name: “Aideepen.com Audio”
Then turn on the power, the Bluetooth Indicator flash, pairing the device when the red and blue flashes alternately. Please attention, If the Bluetooth connection is not available, please kindly ignore the “Aideepen Audio” Bluetooth, device is disconnected for 10 seconds, re-search for pairing.

Describe
Power Supply: 2.1 interface DC 8 ~ 25V power supply. It will work during the range.
Suitable Adapter: 5.5mm*2.1mm
Output impedance: 8 ohm best (can drive 4,6,8,16 ohm impedance speaker)The best speaker is 8 ohm
Audio input: stereo input various versions of the Bluetooth connection
Using CSR8635 Bluetooth chip, Bluetooth V4.0, high software compatibility
How to Pair:
First, you need to check voltage whether the voltage is during DC 8-25V power supply. 12V is the best.
After charging and booting, the section will automatically get into pairing mode, search display device name: “Aideepen.com Audio”
Then turn on the power, the Bluetooth Indicator flash, pairing the device when the red and blue flashes alternately. Please attention, If the Bluetooth connection is not available, please kindly ignore the “Aideepen Audio” Bluetooth, device is disconnected for 10 seconds, re-search for pairing.

Description:
ITEAD PN532 NFC module, as its name implies, is based on PN532 chip and used for 13.56MHz near field communication. The module is equipped with onboard antenna, thus no external antenna coil is needed. It is compatible with SPI, IIC and UART interface for communication. With NFC library support for Arduino and Raspberry Pi offered by us, it is quite convenient for development of products with NFC functions.
Features:
1. Longest effective communication distance of 3 cm 2. Supports switching of SPI, IIC and UART interface. 3. Can be used for 13.56M non-contact communication 4. Compatible with ISO14443 Type A and Type B standards
Specifications:
IC: PN532 Operating Voltage:3.3V Power Supply Voltage:3.3~5.5V Max Supply Current:150mA Working Current(Standby Mode):100mA Working Current(Write Mode):120mA Working Current(Read Mode):120mA Indicator:PWR Interface:SPI Interface, Std Raspberry Pi 20pins Interface

Description
1, the delay of vehicle equipment connected to prevent the car when the current is too large to burn the car ignition equipment.
2, the need to start the order of the occasion to prevent multiple devices at the same time start the current burned electrical appliances too much
One size: 6.8CM * 2.1CM
Second, the main chip: NE555
Third, the working voltage: 12V
1, the delay of vehicle equipment connected to prevent the car when the current is too large to burn the car ignition equipment.
2, the need to start the order of the occasion to prevent multiple devices at the same time start the current burned electrical appliances too much.
1 X 5V/12V Delay relay

Description
1, the delay of vehicle equipment connected to prevent the car when the current is too large to burn the car ignition equipment.
2, the need to start the order of the occasion to prevent multiple devices at the same time start the current burned electrical appliances too much
One size: 6.8CM * 2.1CM
Second, the main chip: NE555
Third, the working voltage: 12V
1, the delay of vehicle equipment connected to prevent the car when the current is too large to burn the car ignition equipment.
2, the need to start the order of the occasion to prevent multiple devices at the same time start the current burned electrical appliances too much.
1 X 5V/12V Delay relay

Description
Screen Size: 64x48 pixels (0.66” Across)
Operating Voltage: 3.3V
Driver IC: SSD1306
Interface: IIC(I2C)
IIC Address: 0x3C or 0x3D

Introduction
RS232 to TTL module
The products are widely used in radio modification, cell phones Brush, 360 Brush, GPS, vehicle inspection, DVD Brush, hard disk repair, set-top box upgrades.
Can be used to program the microcontroller type:
STC microcontroller
STM32 MCU
NEC MCU
Communications chip: Domestic MAX3232
Operating voltage: 3.3V-5.5V
Interface: TX RX VCC GND
Note: Domestic max3232 chip chip, there are some buyers purchase found no compatibility problems, please confirm before buyers to purchase the chip compatible with your system, to avoid buying the wrong, thank you!
Buyer issue summary (we will buyers case problems are listed after the purchase, the buyer for future reference, we believe that the case of failure is greater than the benefits of successful cases buyers):
A Lenovo notebook Serial small plate (max3232) usb to serial cable (340 drivers) Download stc89c52 not use; desktop Serial small plates (max3232) usb to serial cable (340 drivers)
Download stc89c52 normal use; max3232 chip will replace max232 laptop Serial small plates (max232) usb to serial cable (340 drivers) can normally download download stc89c52
Initially concluded: After max3232 through usb to serial cable, may have incompatibilities with certain notebooks. Buyers encountered a similar situation, you can select the appropriate serial chip based on the above test results.
2 2440 development board max3232 small plate Operating voltage 3.3v serial communications found is not normal, the voltage rises to 3.8v will work properly.
We only guarantee the module can be used for serial communication, does not provide guidance related to Brush! Does not provide technical support, do not have any information!

Product Description
3A polymer ternary lithium battery fast charging board (note that it is not suitable for 3.2V lithium iron phosphate battery)
Model: AILAVI-0503V1
Main control chip: IP2312
Input voltage: 4.5~5.5V
Charge cut-off voltage: 4.2V/4.35V (output voltage is available in 2 versions)
Charging current: 3A (can change current by adjusting resistance)
Indicator light: Yes, red: Work indicator. Blue: Full of indicators. Note: This product does not have a power indicator function, without battery protection function.
Conversion efficiency: 3A 93% , 2A 94% , 1A 95% (data is for reference only)
The IP2312 uses a full CC/CV charging mode.
When the battery voltage is lower than 3V, it enters the trickle charge mode and charges the battery with a charge current of 100mA.
When the battery voltage is greater than 3V, enter the constant current charging mode to charge the battery with the set constant current charging current.
When the battery voltage is close to 4.2V and the charging current is less than 300mA, it enters the constant voltage charging mode. After entering the constant voltage mode, the charging is stopped after every 4 minutes, and the battery voltage is detected to be higher than 4.15V: if it is higher than 4.15V, the charging is stopped; otherwise, the charging is continued, and then the detection is performed after 4 minutes.
When the battery is fully charged, if it detects that the battery voltage is lower than 4.1V, it will turn on to charge the battery.
Current adjustment instructions:
Default 3A, remove resistor 2A, replace with 135k resistor 1A
PCB size: 31*15mm
USB socket protrudes about 1mm

Product Description
3A polymer ternary lithium battery fast charging board (note that it is not suitable for 3.2V lithium iron phosphate battery)
Model: AILAVI-0503V1
Main control chip: IP2312
Input voltage: 4.5~5.5V
Charge cut-off voltage: 4.2V/4.35V (output voltage is available in 2 versions)
Charging current: 3A (can change current by adjusting resistance)
Indicator light: Yes, red: Work indicator. Blue: Full of indicators. Note: This product does not have a power indicator function, without battery protection function.
Conversion efficiency: 3A 93% , 2A 94% , 1A 95% (data is for reference only)
The IP2312 uses a full CC/CV charging mode.
When the battery voltage is lower than 3V, it enters the trickle charge mode and charges the battery with a charge current of 100mA.
When the battery voltage is greater than 3V, enter the constant current charging mode to charge the battery with the set constant current charging current.
When the battery voltage is close to 4.2V and the charging current is less than 300mA, it enters the constant voltage charging mode. After entering the constant voltage mode, the charging is stopped after every 4 minutes, and the battery voltage is detected to be higher than 4.15V: if it is higher than 4.15V, the charging is stopped; otherwise, the charging is continued, and then the detection is performed after 4 minutes.
When the battery is fully charged, if it detects that the battery voltage is lower than 4.1V, it will turn on to charge the battery.
Current adjustment instructions:
Default 3A, remove resistor 2A, replace with 135k resistor 1A
PCB size: 31*15mm
USB socket protrudes about 1mm

Product Description
HC-020K speed measuring sensor is a wide voltage, high resolution, short response time, and the switch output speed measurement module. It can test motor's rotational speed with black encoder (measured spec. is related to the encoder, the inner diameter of D type encoder that provided is 4mm, can be used for motor output shaft w/ 4mm diameter, which is TT motor we matched, yellow shell and white axis).
Features:
Module Working Voltage: 4.5-5.5V
Launch Tube Pressure Drop: Vf=1.6V
Launch Tube Current: If<20mA
Signal output: A, B two lines; TT power level;
Resolution: 0.01mm
Measurement frequency: 100KHz
Disc diameter: 24mm
Inner Disc Diameter: 4mm
Encoder resolution: 20 lines
Speed measuring sensor configuration: measure line 1 motor speed
Application: For experiment

Description
W5100Is a multi-functional single chip network interface chip, the internal integration10/100Ethernet controller, mainly used in highly integrated, high stability, high performance and low cost of embedded systems. useW5100Can be achieved without the operating systemInternetconnection.W5100versusIEEE802.3 10BASE-Tand802.3u 100BASE-TXcompatible.W5100The internal integration of the whole hardware, and after years of market-provenTCP / IPProtocol stack, Ethernet media transport layer (MAC) And a physical layerPHY). useW5100Do not need to consider the Ethernet control, only need a simple port (Socket) Programming.
aeProduct.getSubject()
• A variety of interfaces are available: direct bus, indirect bus andSPIbus;
• Hardware supportTCP / IPProtocol stack, supportTCP, UDP, ICMP, IGMP, IPv4, & Lt;ARP, and PPPoE.
• As many as4Independent ports;
• Internal integration16KBYTESend and receive cache;
• A variety of information indicating the output, includingRX, TX, Full / Duplex, Colision, Link, Speed;
• Support for automatic polarity switching (DMI / MDIX);
•3.3Vpowered by,IOSignal compatible5VVoltage;
• Comes with Ethernet port, double row2 * 14 2.0 mmPin
compatibleThe official Ethernet library.

Specifications:
Product name: ATX power supply board
Model: XH - M229
Compatible with the port: ATX (compatible with partial BTX type)
The PIN number: 24 pin
Switch: Yes
Number of sets of output: Four sets of different voltage
Size: 12.8x4.8cm/5.04x1.89"
Quantity: 1 Pcs

Features:
Portable Mobile Power Supply Module.
Supports 3 USB cables.
Hold down the button after standby, LED digital display power supply.
LED digital screen shows current battery power when charging.
When discharging, the LED digital screen displays the current power, and the display saves about 30 seconds (double-click button to restore the display).
After charging and discharging, the system will provide accurate battery instructions.
Specifications:
Material: ABS
Size: 65*25*5mm/2.56*0.98*0.2"
Notes:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3mm measuring deviation due to manual measurement.

Features:
Portable Mobile Power Supply Module.
Supports 3 USB cables.
Hold down the button after standby, LED digital display power supply.
LED digital screen shows current battery power when charging.
When discharging, the LED digital screen displays the current power, and the display saves about 30 seconds (double-click button to restore the display).
After charging and discharging, the system will provide accurate battery instructions.
Specifications:
Material: ABS
Size: 65*25*5mm/2.56*0.98*0.2"
Notes:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3mm measuring deviation due to manual measurement.

Item Description:
3.3-5V Rain Raindrops Detection Sensor Weather Humidity Module For Arduino
Brand New
Feature:
1.The sensor USES the high quality FR - 04 double material, large area of 5.5 * 4.0CM, treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance;
2.With potentiometer sensitivity adjustment;
3.The output format: digital switch output (0 and 1) and analog AO voltage output;
4.Has a fixed bolt hole, convenient installation;
5.The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA;
6.The LM393, use of wide voltage comparator;
7.The working voltage of 3.3 V to 5 V;
Size: Like the picture show

Usage:
- Connected to 5 v power supply power lights, no water droplets on induction plate, the DO output for the high level, switch lights out, a drop of water drops, the DO output for the low level, switch indicator,brush away the water droplets, return to again, the output high level state.
- AO analog output, can be connected to the microcontroller AD mouth drops of rainfall in the above size.
- DO TTL digital output can also be connected microcontroller detecting whether it will rain.

Package includes:
1 x Rain Sensor
1 x Rain Module
2 x Dupont Cables

Package Included:
1. 2pcs x Long female pins
2. 2pcs x Short female pins
3. 2pcs x Normal pins
4. 1pcs x ProtoBoard Shield

Product Description
Digital light intensity detection Model: GY-302
Dimensions: 13.9mm X 18.5mm
Original BH1750FVI chip using ROHM
Power supply :3-5v
Data range 0-65535
Sensor built 16bitAD converter
Direct digital output, omitting complex calculations, calibration is omitted
Does not distinguish between ambient light
Spectral characteristics close to visual sensitivity
Brightness can be a wide range of high-precision measurement lux
Digital Light intensity detection module: GY-30
The ROHM genuine BH1750FVI chip
Power supply :3-5v
Illumination range :0-65535 lx
The sensor built 16bitAD converter
Direct digital output, complex calculation is omitted, omitting calibration
Does not distinguish between ambient light
Close to the visual sensitivity of the spectral characteristics
1 lux high-precision measurement of a wide range of brightness

Product Description
Digital light intensity detection Model: GY-302
Dimensions: 13.9mm X 18.5mm
Original BH1750FVI chip using ROHM
Power supply :3-5v
Data range 0-65535
Sensor built 16bitAD converter
Direct digital output, omitting complex calculations, calibration is omitted
Does not distinguish between ambient light
Spectral characteristics close to visual sensitivity
Brightness can be a wide range of high-precision measurement lux
Digital Light intensity detection module: GY-30
The ROHM genuine BH1750FVI chip
Power supply :3-5v
Illumination range :0-65535 lx
The sensor built 16bitAD converter
Direct digital output, complex calculation is omitted, omitting calibration
Does not distinguish between ambient light
Close to the visual sensitivity of the spectral characteristics
1 lux high-precision measurement of a wide range of brightness

Product Description
STM32F401CEU6 core board V3.0
Freq. 84Mhz ROM:64KB RAM:256KB
STM32F411CEU6 core board V3.0
Freq. 100MHZ ROM:128KB RAM:512KB
Core Board Information
Baidu network disk is not recommended to download data, domestic code cloud is fast
Gitee code cloud information link: https://gitee.com/WeAct-TC/MiniF4-STM32F4x1.git
Github information link: https://github.com/WeActTC/MiniF4-STM32F4x1.git
Baidu network disk link: https://pan.baidu.com/s/1vW9H-q9C5n2yVAEp38pw5A
Extract code: gxnx
STM32 download and burn part of the tutorial: https://www.weact-tc.cn/2019/11/30/STM32Download/
Part of MicroPython tutorial: https://www.weact-tc.cn/2020/01/01/micropython/
MicroPython compilation information: https://github.com/WeActTC/WeAct_F411CE.git
25MHZ high speed crystal oscillator & 32.768Khz 6PF low speed crystal oscillator
V3.0 version began to use lead-free process, the pin header is gold-plated pin header, more environmentally friendly
Flash pads have been reserved and USBDisk && FATFFS routines are provided
WeAct HID FW Bootloader has been burned out of the factory. It is a special factory test version, and hex is not provided.
Support MicroPython programming, provide available MicroPython firmware, see the link for configuration files, but do not provide technical answers!
Support Arduino programming, see Github https://github.com/stm32duino/Arduino_Core_STM32 for details
Boards with version V1.3 and above have 3 buttons, reset button, BOOT0 button, and user buttons.
How to enter ISP mode
Method 1: Press and hold the BOOT0 button and the reset button under the power-on state, then release the reset button, and release the BOOT0 button after 0.5 seconds
Method 2: Hold down the BOOT0 key when power is off, and release the BOOT0 key 0.5S after power on
DFU mode: just use the data cable to connect to the computer, if there is a problem of unrecognized, you can properly heat the chip (25 ° C), and then re-enter the ISP mode
Serial port mode: use USB to serial port to connect PA9 and PA10 of the core board
Software: STM32CubeProg.
WeAct HID FW Bootloader
No need for USB to serial port, no debugger, no computer driver, just a TYPE-C data cable to complete the firmware download
For details, see Code Cloud / Soft / WeAct HID FW Bootloader /
How to enter HID Bootloader after writing to APP
Press and hold the KEY button, click the reset button, LED C13 flashes, release the KEY button to enter

Product Description
STM32F401CEU6 core board V3.0
Freq. 84Mhz ROM:64KB RAM:256KB
STM32F411CEU6 core board V3.0
Freq. 100MHZ ROM:128KB RAM:512KB
Core Board Information
Baidu network disk is not recommended to download data, domestic code cloud is fast
Gitee code cloud information link: https://gitee.com/WeAct-TC/MiniF4-STM32F4x1.git
Github information link: https://github.com/WeActTC/MiniF4-STM32F4x1.git
Baidu network disk link: https://pan.baidu.com/s/1vW9H-q9C5n2yVAEp38pw5A
Extract code: gxnx
STM32 download and burn part of the tutorial: https://www.weact-tc.cn/2019/11/30/STM32Download/
Part of MicroPython tutorial: https://www.weact-tc.cn/2020/01/01/micropython/
MicroPython compilation information: https://github.com/WeActTC/WeAct_F411CE.git
25MHZ high speed crystal oscillator & 32.768Khz 6PF low speed crystal oscillator
V3.0 version began to use lead-free process, the pin header is gold-plated pin header, more environmentally friendly
Flash pads have been reserved and USBDisk && FATFFS routines are provided
WeAct HID FW Bootloader has been burned out of the factory. It is a special factory test version, and hex is not provided.
Support MicroPython programming, provide available MicroPython firmware, see the link for configuration files, but do not provide technical answers!
Support Arduino programming, see Github https://github.com/stm32duino/Arduino_Core_STM32 for details
Boards with version V1.3 and above have 3 buttons, reset button, BOOT0 button, and user buttons.
How to enter ISP mode
Method 1: Press and hold the BOOT0 button and the reset button under the power-on state, then release the reset button, and release the BOOT0 button after 0.5 seconds
Method 2: Hold down the BOOT0 key when power is off, and release the BOOT0 key 0.5S after power on
DFU mode: just use the data cable to connect to the computer, if there is a problem of unrecognized, you can properly heat the chip (25 ° C), and then re-enter the ISP mode
Serial port mode: use USB to serial port to connect PA9 and PA10 of the core board
Software: STM32CubeProg.
WeAct HID FW Bootloader
No need for USB to serial port, no debugger, no computer driver, just a TYPE-C data cable to complete the firmware download
For details, see Code Cloud / Soft / WeAct HID FW Bootloader /
How to enter HID Bootloader after writing to APP
Press and hold the KEY button, click the reset button, LED C13 flashes, release the KEY button to enter

Features:
100% Brand new and high quality.
Item name: 0.95 inch SPI OLED Display
Resolution:96*64
Color: 65536 Colors
Driver IC:SSD1331
Definition of SPI Connector:
1.GND-Gound
2.VCC-Positive Voltage
3.SCL-Clock Line
4.SDA-Data Line
5.RES-Reset
6.DC-Data/Demand
7.CS-Chip Select

Package Included:
1 X 0.95 inch Full Color SPI OLED Display

Description
1. Adopt the highly sensitive angle switch SW-520D as the sensor
2. Comparator output, clean signal, good waveform, strong driving ability, more than 15mA.
3. Working voltage 3.3V-5V
4. Output form: digital switch output (0 and 1)
5. Equipped with fixing bolt holes for easy installation
6. Small board PCB size: 3.2cm x 1.4cm
7. Use wide voltage LM393 comparator
The switch output of the module depends on the on and off of the angle switch. When the angle switch is off, DO outputs high level, and when the angle switch is on, DO outputs low level;
The output terminal can be directly connected with the single-chip microcomputer, and the high and low level can be detected by the single-chip microcomputer, thereby detecting the angle change;
The output terminal can directly drive the relay module, which can form a high-power angle switch to protect electrical equipment and other products from automatically powering off when they fall.

MB102 White breadboard power module
The bread board power and other breadboard power module market differences: 1. The concave design, do not waste bread board space. 2.2-way distribution may have disconnected, you can choose 5V, 3.3V voltage. 3. The power supply can be powered via MINI/Micro and DC head

MB102 Black breadboard power module
1.Brand new and high quality. 2.Breadboard power supply module, compatible with 5 V, 3.3 V Apply to MB102 breadboard 3.Input voltage: 6.5-12 V (DC) or USB power supply 4.Output voltage: 3.3V/5V can switch over 5.Maximum output current: <700 ma 6.Fluctuation two road independent control, can switch over to 0 V, 3.3 V, 5 V 7.On-board two groups of 3.3V, 5V DC output plug pin, convenient external lead use. 8.Size:5.3cm x 3.5cm

MB102 White breadboard power module
The bread board power and other breadboard power module market differences: 1. The concave design, do not waste bread board space. 2.2-way distribution may have disconnected, you can choose 5V, 3.3V voltage. 3. The power supply can be powered via MINI/Micro and DC head

MB102 Black breadboard power module
1.Brand new and high quality. 2.Breadboard power supply module, compatible with 5 V, 3.3 V Apply to MB102 breadboard 3.Input voltage: 6.5-12 V (DC) or USB power supply 4.Output voltage: 3.3V/5V can switch over 5.Maximum output current: <700 ma 6.Fluctuation two road independent control, can switch over to 0 V, 3.3 V, 5 V 7.On-board two groups of 3.3V, 5V DC output plug pin, convenient external lead use. 8.Size:5.3cm x 3.5cm

MB102 White breadboard power module
The bread board power and other breadboard power module market differences: 1. The concave design, do not waste bread board space. 2.2-way distribution may have disconnected, you can choose 5V, 3.3V voltage. 3. The power supply can be powered via MINI/Micro and DC head

MB102 Black breadboard power module
1.Brand new and high quality. 2.Breadboard power supply module, compatible with 5 V, 3.3 V Apply to MB102 breadboard 3.Input voltage: 6.5-12 V (DC) or USB power supply 4.Output voltage: 3.3V/5V can switch over 5.Maximum output current: <700 ma 6.Fluctuation two road independent control, can switch over to 0 V, 3.3 V, 5 V 7.On-board two groups of 3.3V, 5V DC output plug pin, convenient external lead use. 8.Size:5.3cm x 3.5cm

Product Description
Product model: AILAVI-180312
Name: Single-cell lithium battery boost fast charging source module
Main control chip: TPS61088A
Identification chip: FP6601Q
Input voltage: 2.8 ~ 4.5V, very suitable for 3.7V polymer lithium battery
Output voltage: The default is 5V, triggering fast charge after 4.5V ~ 12V according to the protocol.
Input rated current: 8A
Output current: 5V3A, 9V2A, 12V2A. Output current is adaptive.
Output power: up to 24W.
Support Agreement: QC2.0, QC3.0, Huawei FCP, DCP Agreement
Efficiency is up to 93% , with a typical value of 90% .
Module size: 47.5 (length) * 16.5 (width) * 8 (height) mm (including USB)
Module net weight: about 7 grams
The FP6601Q chip integrates the HiSilicon fast charge protocol and Qualcomm QC2.0/3.0USB interface fast charge protocol, which can quickly charge devices that support FCP and QC2.0/3.0 protocols. In addition to supporting the USB BC1.2 standard, it also supports FOR Apple and FOR Samsung devices. The chip can automatically detect whether the currently connected device is a QC2.0/3.0 or FCP device to automatically adjust the voltage.

feature of product:
1. Support FCP voltage and current output protocol.
2. Support Qualcomm QC2.0/3.0 classA 5V, 9V, 12V voltage output.
3. Automatically recognize FCP and QC2.0/3.0 fast charge protocol.
4. Support the protocol equipment of Chinese telecom enterprise YD/T 1591.


The TPS61088 is a high power density, fully integrated boost converter with an 11mΩ power switch and a 13mΩ rectifier switch that provides an efficient, small form factor solution for portable systems. With a wide input voltage range of 2.7V to 12V, the TPS61088 supports applications with single or two-cell Li-Ion batteries. The device features 10A switching current capability and is capable of delivering output voltages up to 12.6V.


The TPS61088 uses an adaptive constant off-time peak current control topology to regulate the output voltage. The TPS61088 operates in PWM mode under medium to heavy load conditions. Under light load conditions, the device can select one of the following two modes of operation via the MODE pin. One is a PFM mode that increases efficiency; the other is a forced PWM mode that avoids application problems due to low switching frequency. The switching frequency in PWM mode can be adjusted from 200kHz to 2.2MHz with an external resistor. The TPS61088 also implements a programmable soft start function and an adjustable switching peak current limit. In addition, the device is available with 13.2V output overvoltage protection, cycle-by-cycle overcurrent protection, and thermal shutdown protection.
The TPS61088 is available in a 20-pin 4.50mm × 3.50mm VQFN package.

Product application introduction:
This module can be applied to a single-cell lithium battery to 5V-12V output for general digital product charging, such as mobile phones, Ipad, MP3, PSP and so on. It can be used as a high current output mobile power source only by connecting the battery. It is also possible to supply power to the 5-12V product by setting the output voltage.

Description
The MCP4725 is a 12-channel buffered voltage output DAC with non-volatile memory (EEPROM) of. The user can configure the register bit (2) and DAC input data (12) stored in nonvolatile EEPROM (14-bit) memory. By setting the configuration register bits DAC can be configured as a normal mode or power-saving shutdown mode. The device uses a two-wire I2C-compatible serial interface, and a voltage range of 2.7V to 5.5V single supply.


Description: You've always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it The CJMCU-MCP4725 is an I2C controlled Digital-to-Analog converter (DAC) A DAC allows you to!. send analog signal, such as a sine wave, from a digital source, such as the I2C interface on the microcontroller. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!

This version of the CJMCU-MCP4725 Breakout fixes a few issues with the board including the IC footprint, the I2C pinout, changes the overall board dimensions to better fit your projects, and a few more minor tweaks. This board breaks out each pin you will need to access and use the MCP4725 including GND and Signal OUT pins for connecting to an oscilloscope or any other device you need to hook up to the board. Also on board are SCL, SDA, VCC, and another GND for your basic I2C pinout. Additionally, if you are looking to have more than one MCP4725 on a bus, the pull-up resistors on this board can be disabled just check the Hookup Guide in the Documents section below for instructions and tips on doing this.

Features:

12-bit resolution
I2C Interface (Standard, Fast, and High-Speed supported)
Small package
2.7V to 5.5V supply
Internal EEPROM to store settings

Description:
Intelligent non-contact liquid level sensor adopts advanced signal processing technology and high-speed signal processing chip, and it won't be influenced by container wall thickness when detecting the liquid level in a airtight container. Liquid level sensor is installed under container (high level and low level). No need to bore a non-metallic container, easy to install. It can detect liquid level of various toxic substances, acid, alkali and all kinds liquid in high pressure airtight container. It can be widely used and has no special requirement for liquid medium and material of container.
Features:
Non-contact liquid level sensor is applicable to non-metallic containers without direct contact with the liquid, not affected by scale or other impurities.
Intelligent liquid level benchmark adjustment and level memory function, liquid level display mode, can achieve multi-point series connection.
Electronic circuit structure rather than machinery ensures stable performance, durability and a long service life.
High stability, high sensitivity, strong anit-interference ability make sure it won't be affected by electromagnet, special designed to deal with power frequency interference and common mode interference.
Compatible with most 5 ~ 24V power adapter.
Strong compatibility through a variety of non-metallic material containers, such as plastic, glass, ceramics etc, with a 13mm or more induction distance.
Testing is accurate and stable and boiling water level can be detected. Liquid, powder, particles can all be detected.

Specification:
Product name: Bluetooth Audio Amplifier Board
Product model: XH-A158
Bluetooth Ver.: 5.0
Chip model: PAM8403
Power supply voltage: DC 5V
Magnification: 4 times
Number of channels: Two-channel stereo
Output power: 5W * 2