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 STM32F407VGT6  STM32F407VET6 development board F407 microcontroller learning board STM32 system board
 
Product Features:
USB interface support download (DFU download, not serial port)
OLED interface - plug and play support 0.96 inch OLED
TFT liquid crystal interface
Connect 1.44 inch full color LCD
Connect 1.8 inch full color LCD
Data storage: W25Q16
High speed crystal oscillator 8MHz
Low frequency crystal: 32.768K
Power programmable LED lights
User and reset button
All CPU-IO leads 2.54 integer pitch pins
 
Parameter:
Kernel: Cortex-M4 32 bit RISC
Features: Single-cycle DSP instructions
Operating frequency: 168MHZ, 210DMIPS/1.25DMIPS/MHz
Working voltage: 1.8-3.6V
Package: LQFP100
Storage resource: 512KB Flash (VG specification is 1M capacity)
                                      192 4KB SRAM
Resources: 3*SPI, 3*USART
                           2*UART, 2*I2S, 3*12C
                           1*FSMC, 1*SDIO, 2*CAN;
                           1*USB 2.0 FS/HS controller (with dedicated DMA)
                           1*USB HS ULPI (for external USB HS PHY)
                           1*10/100Ethemet MAC
                           1*8 to 12-bit parallel camera interrace
                           3*AD (12-bit, 1us, time-sharing 24), 2*DA (12-bit)
 
 
 
 STM32F407VET6 Development Board
Feature:
STM32F407VET6 chip main parameters
Kernel: Cortex-M4 32-bit RISC;
Features: single-cycle DSP instructions
Operating frequency: 168MHz
210DMIPS / 1025 DMIPS / MHZ
Operating voltage: 1.8-3.6V
Package: LQFP144
Storage resources: 512kB Flash
                                    192 4kb SRAM
 
Resources: 
3 X SPI, 3 X USART
2 X UART
2 X I2S, 3 X I2C
1 X FSMC, 1 X SDIO, 2 X CAN
1 X USB 2.0 FS / HS controller (with dedicated DMA)
1 X USB HS ULPI (for external USB HS PHY)
1 X 10/100 Ethernet for MAC
1 X 8 to 12-bit parallel camera interface
3 X AD (12 Wei, 1us, sharing 24), 2 X DA (12-bit)

 STM32F407VGT6  STM32F407VET6 development board F407 microcontroller learning board STM32 system board
 
Product Features:
USB interface support download (DFU download, not serial port)
OLED interface - plug and play support 0.96 inch OLED
TFT liquid crystal interface
Connect 1.44 inch full color LCD
Connect 1.8 inch full color LCD
Data storage: W25Q16
High speed crystal oscillator 8MHz
Low frequency crystal: 32.768K
Power programmable LED lights
User and reset button
All CPU-IO leads 2.54 integer pitch pins
 
Parameter:
Kernel: Cortex-M4 32 bit RISC
Features: Single-cycle DSP instructions
Operating frequency: 168MHZ, 210DMIPS/1.25DMIPS/MHz
Working voltage: 1.8-3.6V
Package: LQFP100
Storage resource: 512KB Flash (VG specification is 1M capacity)
                                      192 4KB SRAM
Resources: 3*SPI, 3*USART
                           2*UART, 2*I2S, 3*12C
                           1*FSMC, 1*SDIO, 2*CAN;
                           1*USB 2.0 FS/HS controller (with dedicated DMA)
                           1*USB HS ULPI (for external USB HS PHY)
                           1*10/100Ethemet MAC
                           1*8 to 12-bit parallel camera interrace
                           3*AD (12-bit, 1us, time-sharing 24), 2*DA (12-bit)
 
 
 
 STM32F407VET6 Development Board
Feature:
STM32F407VET6 chip main parameters
Kernel: Cortex-M4 32-bit RISC;
Features: single-cycle DSP instructions
Operating frequency: 168MHz
210DMIPS / 1025 DMIPS / MHZ
Operating voltage: 1.8-3.6V
Package: LQFP144
Storage resources: 512kB Flash
                                    192 4kb SRAM
 
Resources: 
3 X SPI, 3 X USART
2 X UART
2 X I2S, 3 X I2C
1 X FSMC, 1 X SDIO, 2 X CAN
1 X USB 2.0 FS / HS controller (with dedicated DMA)
1 X USB HS ULPI (for external USB HS PHY)
1 X 10/100 Ethernet for MAC
1 X 8 to 12-bit parallel camera interface
3 X AD (12 Wei, 1us, sharing 24), 2 X DA (12-bit)

 STM32F407VGT6  STM32F407VET6 development board F407 microcontroller learning board STM32 system board
 
Product Features:
USB interface support download (DFU download, not serial port)
OLED interface - plug and play support 0.96 inch OLED
TFT liquid crystal interface
Connect 1.44 inch full color LCD
Connect 1.8 inch full color LCD
Data storage: W25Q16
High speed crystal oscillator 8MHz
Low frequency crystal: 32.768K
Power programmable LED lights
User and reset button
All CPU-IO leads 2.54 integer pitch pins
 
Parameter:
Kernel: Cortex-M4 32 bit RISC
Features: Single-cycle DSP instructions
Operating frequency: 168MHZ, 210DMIPS/1.25DMIPS/MHz
Working voltage: 1.8-3.6V
Package: LQFP100
Storage resource: 512KB Flash (VG specification is 1M capacity)
                                      192 4KB SRAM
Resources: 3*SPI, 3*USART
                           2*UART, 2*I2S, 3*12C
                           1*FSMC, 1*SDIO, 2*CAN;
                           1*USB 2.0 FS/HS controller (with dedicated DMA)
                           1*USB HS ULPI (for external USB HS PHY)
                           1*10/100Ethemet MAC
                           1*8 to 12-bit parallel camera interrace
                           3*AD (12-bit, 1us, time-sharing 24), 2*DA (12-bit)
 
 
 
 STM32F407VET6 Development Board
Feature:
STM32F407VET6 chip main parameters
Kernel: Cortex-M4 32-bit RISC;
Features: single-cycle DSP instructions
Operating frequency: 168MHz
210DMIPS / 1025 DMIPS / MHZ
Operating voltage: 1.8-3.6V
Package: LQFP144
Storage resources: 512kB Flash
                                    192 4kb SRAM
 
Resources: 
3 X SPI, 3 X USART
2 X UART
2 X I2S, 3 X I2C
1 X FSMC, 1 X SDIO, 2 X CAN
1 X USB 2.0 FS / HS controller (with dedicated DMA)
1 X USB HS ULPI (for external USB HS PHY)
1 X 10/100 Ethernet for MAC
1 X 8 to 12-bit parallel camera interface
3 X AD (12 Wei, 1us, sharing 24), 2 X DA (12-bit)

 

 

100% brand new and high quality
The GPRS Shield is based on SIM900 module from SIMCOM and compatible with and its clones. The GPRS Shield provides you a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present onboard.
 
Features:
Quad-Band 850 / 900/ 1800 / 1900 MHz - would work on GSM networks in all countries across the world.
GPRS multi-slot class 10/8
GPRS mobile station class B
Compliant to GSM phase 2/2
Class 4 (2 W @ 850 / 900 MHz)
Class 1 (1 W @ 1800 / 1900MHz)
Control via AT commands - Standard Commands: GSM 07.07 & 07.05 | Enhanced Commands: SIMCOM AT Commands.
Short Message Service - so that you can send small amounts of data over the network (ASCII or raw hexadecimal).
Embedded TCP/UDP stack - allows you to upload data to a web server.
RTC supported.
Selectable serial port.
Speaker and Headphone jacks
Low power consumption - 1.5mA(sleep mode)
Industrial Temperature Range - -40°C to 85 °C
Size:8.5x5.7x2cm(approx)
 

20pcs Mega 2560 R3 Mega2560 REV3 ATmega2560-16AU,20pcs ATMEGA16U2-MU Board 20pcs USB Cable compatible

Working voltage: 1.7V3.6V
Working temperature: -40 ℃ ~ 85 ℃
Communication interface: 12C (up to 3.4 MHz) and SPI (3 and 4 wires, up to 10 MHz)
Humidity, pressure and gas sensors can be enabled / disabled individually
The current consumption at 1 Hz humidity and temperature is 2.1 LA, the current consumption at 1 Hz pressure and temperature is 3.1 LA, and the current consumption at 1 Hz humidity, pressure and temperature is 3.7 LA
Gas sensor parameters: response time (33-63% ) <1s (for new sensors) power consumption in ultra-low power mode <0.1 mA output data processing direct indoor air quality (IAQ) index output humidity sensor parameters: response time (0 -83% ) ~ 8s
Accuracy tolerance ± 396r ..
Hysteresis ± 1.5% r.h.
Pin definition
vCC: Power supply is positive
GND: ground
SCL: 12C / SP1 clock line
SDA: 12C / SP! Data cable
sDO: SPI data cable
CS: SPI1 slave enable

For get a detail information of product, instruction, guide and software, Pls visit to official page of product.
 
Full integration on one board: Mega R3 ATmega2560 and WiFi ESP8266 with memory   4 Mt bytes (32 
 Mt bit)  . All of the modules can work together or each separately. And everyone has their own pinout headers.
The convenient solution for the development of new projects requiring Uno and WiFi.
Via USB you can update sketches and firmvare for ATmega2560 and for ESP8266. For this on board have the USB-serial converter CH340G.
Use this board is very simple.
The board has DIP-switch, to connect the modules.
For example, to: USB and ATmeg2560, USB and ESP8266, ATmega2560 and ESP8266.
Table DIP- switch:
 
Connection

DIP
 

1

2

3

4

5

6

7
ATmega2560<->ESP8266

ON

ON

OFF

OFF

OFF

OFF

OFF
USB <->ATmega2560

OFF

OFF

ON

ON

OFF

OFF

OFF
USB<->ESP8266 (Update firmware or sketch)

OFF

OFF

OFF

OFF

ON

ON

ON
USB<->ESP8266 (communication)

OFF

OFF

OFF

OFF

ON

ON

OFF
All independent

OFF

OFF

OFF

OFF

OFF

OFF

OFF
 
Special solution:
USB <->ATmega328<-> ESP8266
 

DIP

SWITH 2
Connection

1

2

3

4

5

6

7

 
USB <-> ATmega2560<-> ESP8266

ON

ON

ON

ON

OFF

OFF

OFF

To RXD3/TXD3
·         USB converter CH340G connect to RX0/TX0 of ATmega2560
·         ESP8266 connect to RX3/TX3 of ATmega2560

mega2560

Embed version of Mega 2560 CH340G/ATmega2560 - compatible with Arduino Mega 2560 board. Built on the Atmel ATmega2560 microcontroller and USB-UART interface chip CH340G.
Board have compact size 38x55mm. It is good solution, to make your final project on solder proto-board.
Board for functionality similar to the Arduino Mega 2560. It is embed board, but the same stable, and uses the original chips ATmega2560 (16 MHz).
The board used the chip CH340G as converter UART-USB. When you work in the frequency 12Mhz, giving a stable result of data exchange (need install drivers to computer).
Mega PRO (Embed) 2560 CH340G / ATmega2560 - connects to the computer via microUSB cable (used for almost all Android smartphones).
You can supply power to board through the MicroUSB connector or to power pinheaders. The voltage regulator (LDO) can deal with incoming voltage from 6V to 9V (peack 18V) DC. Output current for 5V - about 800mA, for 3.3V - about 800mA (Please note that the higher the input voltage the lower the outgoing current). That will provide a reliable power most of your initial projects.

BME280, the precision sensor from , is soldered onto PCB.
Not only the pressure and the temperature, this sensor can measure humidity.
It uses both I2C and SPI (supports 3-, 4-wire SPI) interface
 
Specifications:
Supply Voltage: 1.8 - 5V DC
Interface: I2C (up to 3.4MHz), SPI (up to 10 MHz)
Operational Range:
Temperature: -40 to 85°C
Humidity: 0-100%
Pressure: 300-1100 hPa
Resolution:
Temperature: 0.01°C
Humidity: 0.008%
Pressure: 0.18Pa
Accuracy:
Temperature: -1°C
Humidity: -3%
Pressure: -1Pa
I2C address
SDO LOW : 0x76
SDO HIGH: 0x77
 

Product Description Hardware Specifications Chipset ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash 4MB / PSRAM 8MB SRAM 520 kB SRAM Button Reset USB to TTL CP2104 Modular interface UART.SPI.SDIO.I2C.LED PWM.TV PWM.I2S.IRGPIO.capacitor touch sensor.ADC.DACLNA pre-amplifier On-board clock 40MHz crystal oscillator Working voltage 2.7V-3.6V Working current About 70mA Sleep current About 300uA SIM card Only supports Nano SIM card Working temperature range -40° ~ 85° Size&Weight 78.83mm*28.92mm*8.06mm(11.77g) Power Supply Specifications Power Supply USB 5V/1A Charging current 500mA Battery 3.7V lithium battery JST Connector 2Pin 1.25mm USB Type-C Wi-Fi Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC(esp32 chip) Protocol 802.11 b/g/n(802.11n,speed up to150Mbps)A-MPDU and A-MSDU polymerization,support 0.4μS Protection interval Frequency range 2.4GHz~2.5GHz(2400M~2483.5M) Transmit Power 22dBm Communication distance 300m Bluetooth Protocol meet bluetooth v4.2BR/EDR and BLE standard Radio frequency with -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH Audio frequency CVSD&SBC audio frequency Software specification Wi-Fi Mode Station/SoftAP/SoftAP Station/P2P Security mechanism WPA/WPA2/WPA2-Enterprise/WPS Encryption Type AES/RSA/ECC/SHA Firmware upgrade UART download/OTA(Through network/host to download and write firmware) Software Development Support cloud server development /SDK for user firmware development Networking protocol IPv4.IPv6.SSL.TCP/UDP/HTTP/FTP/MQTT User Configuration AT Instruction set, cloud server, android/iOSapp OS FreeRTOS More Information:https://github.com/Xinyuan-LilyGO/TTGO-T-Call

10pcs Mega 2560 R3 Mega2560 REV3 ATmega2560-16AU,10pcs ATMEGA16U2-MU Board 10pcs USB Cable compatible 10set for Arduino

 
UNO with CH340

 
 
 
Detecting range:
3cm-4M
      
Best in 30 degree angle
      
Electronic brick compatible interface
      
5VDC power supply
      
Breadboard friendly
      
Dual transducer
      
library ready
      
Specification:
      
Working Voltage: 5V (DC)
      
Static current: Less than 2mA.
      
Output signal: Electric frequency signal, high level 5V, low level 0V.
      
Sensor angle: Not more than 15 degrees.
      
Detection distance: 2cm-450cm.
      
High precision: Up to 0.3cm
      
Working tempter:-20C___ 60C
      
Weight: 10g
      
Size: 45x 21mm (L x W)
 
 SR04 Connector 4Pin:
 
   VCC  
 
   Echo
 
   OUT
      
   GND
 
 
      
 SRF05 Connector 5Pin:
      
      VCC
      
      Trig (T)
      
      Echo(R)
      
      OUT
      
      GND
   

 
 
 
Detecting range:
3cm-4M
      
Best in 30 degree angle
      
Electronic brick compatible interface
      
5VDC power supply
      
Breadboard friendly
      
Dual transducer
      
library ready
      
Specification:
      
Working Voltage: 5V (DC)
      
Static current: Less than 2mA.
      
Output signal: Electric frequency signal, high level 5V, low level 0V.
      
Sensor angle: Not more than 15 degrees.
      
Detection distance: 2cm-450cm.
      
High precision: Up to 0.3cm
      
Working tempter:-20C___ 60C
      
Weight: 10g
      
Size: 45x 21mm (L x W)
 
 SR04 Connector 4Pin:
 
   VCC  
 
   Echo
 
   OUT
      
   GND
 
 
      
 SRF05 Connector 5Pin:
      
      VCC
      
      Trig (T)
      
      Echo(R)
      
      OUT
      
      GND
   

20pcs Mega 2560 R3 Mega2560 REV3 ATmega2560-16AU,20pcs ATMEGA16U2-MU Board 20pcs USB Cable compatible

NRF24L01   is a work in the 2.4-2.5GHz worldwide ISM band single-chip transceiver, wireless transceiver, including: the frequency generator the enhanced SchockBurstTM mode controller power amplifier crystal amplifier modulator demodulator output power channel selection and protocol set by the SPI interface to set a very low current consumption, lower current consumption mode 12.3mA Power-down mode and standby mode when in transmit mode emission power 6dBm when current consumption is 9.0mA acceptance model.
Ball to open ISM band maximum 0dBm transmit power, license-exempt use. The open 100 meters!
Support six channels of data reception
(1) low operating voltage: 1.9 ~~ 3.6V low-voltage
(2) high-rate: 2Mbps, air transmission time is very short, greatly reducing the wireless transmission of collision phenomena (software settings 1Mbps or 2Mbps air transmission rate)
Multi-frequency points: 125 frequency points, to meet the multi-point communications and frequency hopping communications needs
4 ultra-compact: built-in 2.4GHz antenna compact 15x29mm (including antenna)
(5) Low power consumption: when in answer mode communication, fast air transmission and start-up time greatly reduces the current consumption.
Low application cost: NRF24L01 integrates all RF protocol high-speed signal processing section, such as: automatically resend lost packets and automatically generate an acknowledge signal, etc. the nRF24L01 The SPI interface can take advantage of the microcontroller hardware SPI port or microcontroller I / O port to simulate the internal FIFO can be used with a variety of low-speed microprocessor interface, easy to use low-cost microcontroller.
7 facilitate the development: the link layer is fully integrated in the module, very easy to develop. Automatic retransmission function, automatic detection and retransmission of lost packets, the retransmission time and the number of retransmission can be software-controlled automatic storage is not received the packet of the response signal auto-answer, after the receipt of a valid data, the module automatically sends the reply fixed frequency detection signals without any additional programming Carrier Detect - built-in hardware CRC error detection and point-to-multipoint communication address control packet transmission error counter and carrier detection can be used for frequency hopping set can also set up six to receive the channel address, can have a choice of open receive channel standard the pin Dip2.54MM spacing interfaces for embedded applications.
 

 

10pcs Mega 2560 R3 Mega2560 REV3 ATmega2560-16AU,10pcs ATMEGA16U2-MU Board 10pcs USB Cable compatible 10set for Arduino

CCS811-811 air quality monitoring Digital Internal gas sensor
 
the CJMCU-811 is an ultra-low-power digital gas sensor that integrates a sensor and a CCS801-bit MCU with an analog-digital converter (ADC) for detecting indoor air quality, including carbon monoxide (CO) and a wide range of Volatile Organic compounds (VOCs).
 
air quality sensor CCS811 characteristics:
 
 
Ultra-low power consumption can be used in battery powered equipment
 
high sensitivity, fast heating
 
Intelligent algorithm calculates TVOC / eCO2 values
 
I2C signal output, direct communication with the main system
 
 
 
the main characteristics of the air quality sensor CJMCU-811:
 
metal oxide (MOX) sensors to monitor indoor air quality
 
a-bit MCU is integrated to perform the \'first-level algorithm
 
adc built in for sensor readings and digitized conversions
 
I2C slave interface can be connected directly to the master control system
 
Reset / interrupt control
 

MEGA 2560

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you'll have it running in under 10 minutes! Works best with any classic  (UNO/Duemilanove/Diecimila). This shield does NOT work with the Mega but its going to be half the speed of the Uno-type boards because of the way the Mega rearranges all the pins (there is no way to get around this!) This shield is not Leonardo-compatible
Description:
Spice up your project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (2.4" diagonal) bright (4 white-LED backlight) and colorful (18-bit 262,000 different shades)! 240x320 pixels with individual pixel control. It has way more resolution than a black and white 128x64 display. As a bonus, this display has a resistive touchscreen attached to it already, so you can detect finger presses anywhere on the screen.
 
Technical Details:
2.4" diagonal LCD TFT display
240x320 resolution, 18-bit (262,000) color
spfd5408 controller with built in video RAM buffer
8 bit digital interface, plus 4 control lines
Uses digital pins 5-13 and analog 0-3. That means you can use digital pins 2, 3 and analog 4 and 5. Pin 12 is available if not using the microSD
Works with any '328 or Mega (Leonardo not supported yet)
5V compatible! Use with 3.3V or 5V logic
Onboard 3.3V 300mA LDO regulator
4 white LED backlight. On by default but you can connect the transistor to a digital pin for backlight control
4-wire resistive touch screen
   

Specification:
Brand new and high quality.
chip board ENC28J60/SS.
the board 25MHZ crystal.
the network interface board HR911105A.
3.3 V power supply pin.
Size:5cm x 2cm x 1.5cm /1.92''x0.72''
Weight: 11g

Please visit our forum for more information: http://forum.mhetlive.com/topic/42/mh-et-live-microwave-sensor Overview The microwave motion sensor is a microwave moving object detector designed using Doppler radar principle. Unlike ordinary infrared detectors, microwave sensors detect the motion of an object by detecting microwaves reflected from the object. The detection object will not be limited to the human body, and there are many other things. The microwave sensor is not affected by the ambient temperature, has a long detection range and high sensitivity, and is widely used in industrial, transportation and civil devices such as vehicle speed, automatic doors, sensor lights, and parking sensors. Because of the universality of microwave sensor detection objects, in actual life applications, it will be matched with another sensor for targeted detection. Such as microwave sensor infrared pyroelectric sensor, can effectively determine whether someone passed, will not be the sun, was disturbed by the color of clothing, will not respond to other objects. characteristic This detection method has the following advantages over other detection methods: 1. non-contact detection; 2. not affected by temperature, humidity, noise, airflow, dust, light, etc., suitable for harsh environments; 3. anti-radio frequency interference ability; 4.the output power is small, do not harm the body structure; 5. detection distance; 6. Support the detection of non-life objects 7. the direction of the microwave is very good, the speed is equal to the speed of light; Product parameters Working voltage : 5V±0.25V Operating Current (CW): 50mA max., 30mA typical size: R=30.6mm Emission parameters: Detection distance: Used with adapter plate or reference circuit below, 2-16m continuously adjustable (minimum 2m, maximum 16m) Helium emission frequency : 10.525 GHz Frequency setting accuracy : 3MHz Output power (minimum): 13dBm EIRP harmonic emission: <-10dBm Average current (5% DC) : 2mA typ. Pulse width (Min.): 5uSec Duty cycle (Min.): 1% Receive parameters: Sensitivity (10dB S/N ratio) 3Hz to 80Hz Bandwidth: -86dBm 10.3Hz to 80Hz Bandwidth Clutter 10uV Antenna gain: 8dBi Vertical 3dB beam width: 36 degrees Water level 3dB Beam width: 72 degrees Size Chart Pin Description

10pcs Mega 2560 R3 Mega2560 REV3 ATmega2560-16AU,10pcs ATMEGA16U2-MU Board 10pcs USB Cable compatible 10set for Arduino

 
Item name: HMC5883L module (three-axis magnetic field module)
Model: GY-273
Chips: HMC5883L
Communication: IIC communication protocol
Measuring range: ± 1.3-8 gauss
Specifications:
Power supply :3-5V
Size: 1.8 x 1.3 cm
Net weight:17g
Package weight:27g
Color:As shown in the pictures
Package included:
50 * HMC5883L Triple Axis Compass Magnetometer Sensor Module For Arduino 3V-5V

 
Description:
 
100% brand new and high quality
Support Google Earth
C / A code 1.023 MHz stream
Receiving Band: L1 [1575.42 MHz]
Pursuit Channel: 56
DGPS [WAAS, EGNOS and MSAS]
positioning performance:
2D plane: 5 m [Average]
2D plane: 3.5 m [Average], has auxiliary DGPS.
Drift: <0.02 m / s
Timing Accuracy: 1us
Reference Coordinate System: WGS-84
Maximum altitude: 18,000 m
Maximum speed: 500 m / s
Acceleration: <4g
electrical properties:
Tracking sensitivity: -162dBm
Acquisition sensitivity: -160dBm
Departure Cold time: 29 s [Average]
Now Hot start: 28 s [Average]
Hot start time: 1 s [Average]
win back time: 0.1 s [Average]
operating temperature: -30 ° To 80°
Quantity:1pc

 Feature 1.Type: F-3188 2.Bluetooth Specification: v4.0 3.Voltage: DC3.3V-4.2V 4.Bluetooth protocol: HFP V1.6/A2DP V1.2/AVRCP V1.4/HSP V1.2 5.Working Current: ≤30mA 6.Standby Current: <50ua 7.temperature="" range:="" -40="" celsius="" ~="" 80="" celsius="" 8.wireless="" transmission="" range:=""> 10m 9.Transmission power: CLASS1/CLASS2/CLASS3,9dbm(MAX) 10.Sensitivity: -80dBm<0.1% ber 11.frequency="" range:="" 2.4ghz="" ~="" 2.480ghz="" 12.external="" interface:="" pio="" 13.audio="" performance:="" aac/mp3/sbc/aptx="" 14.audio="" snr:="">

 
Description
ME-BME280 is a Breakout Board featuring a Bosch Sensortec ME280 Temperature, Humidity & Pressure Sensor. 
The board has selectable I2C address jumper (solder link GS2), I2C pull-up resistors, 7 pin header 2.54mm, and two mounting holes 3.5mm.
Default setting of the board; single power rail Vdd=Vdd_IO (solder link GS1), pull-ups resistors (R2, R3) 10k, protocol selector resistor 0ohm (R1), decoupling capacitors 0.1uF on both power supply pins Vdd & Vdd_IO.
If you connect board to both power rails VDD_IO 1.8V and VDD 3.3V be sure to remove the power rail jumper GS1!
 
BME280 Features
- Package 2.5 mm x 2.5 mm x 0.93 mm metal lid LGA
- Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)
- Supply voltage VDD main supply voltage range: 1.71 V to 3.6 V
   VDDIO interface voltage range: 1.2 V to 3.6 V
- Current consumption 1.8 uA @ 1 Hz humidity and temperature
   2.8 uA @ 1 Hz pressure and temperature
   3.6 uA @ 1 Hz humidity, pressure and temperature
   0.1 uA in sleep mode
- Operating range -40… 85 C, 0…100 % rel. humidity, 300…1100 hPa- Humidity sensor and pressure sensor can be independently enabled/disabled
 
 
Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI!
 
This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with  ±1 meter accuracy
 
The BME280 is the next-generation of sensors from Bosch, and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications, but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
 
 
 

 
Description
ME-BME280 is a Breakout Board featuring a Bosch Sensortec ME280 Temperature, Humidity & Pressure Sensor. 
The board has selectable I2C address jumper (solder link GS2), I2C pull-up resistors, 7 pin header 2.54mm, and two mounting holes 3.5mm.
Default setting of the board; single power rail Vdd=Vdd_IO (solder link GS1), pull-ups resistors (R2, R3) 10k, protocol selector resistor 0ohm (R1), decoupling capacitors 0.1uF on both power supply pins Vdd & Vdd_IO.
If you connect board to both power rails VDD_IO 1.8V and VDD 3.3V be sure to remove the power rail jumper GS1!
 
BME280 Features
- Package 2.5 mm x 2.5 mm x 0.93 mm metal lid LGA
- Digital interface I2C (up to 3.4 MHz) and SPI (3 and 4 wire, up to 10 MHz)
- Supply voltage VDD main supply voltage range: 1.71 V to 3.6 V
   VDDIO interface voltage range: 1.2 V to 3.6 V
- Current consumption 1.8 uA @ 1 Hz humidity and temperature
   2.8 uA @ 1 Hz pressure and temperature
   3.6 uA @ 1 Hz humidity, pressure and temperature
   0.1 uA in sleep mode
- Operating range -40… 85 C, 0…100 % rel. humidity, 300…1100 hPa- Humidity sensor and pressure sensor can be independently enabled/disabled
 
 
Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI!
 
This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuraccy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with  ±1 meter accuracy
 
The BME280 is the next-generation of sensors from Bosch, and is the upgrade to the BMP085/BMP180/BMP183 - with a low altitude noise of 0.25m and the same fast conversion time. It has the same specifications, but can use either I2C or SPI. For simple easy wiring, go with I2C. If you want to connect a bunch of sensors without worrying about I2C address collisions, go with SPI.
 
 
 

XL6009 is a high-performance 4A switch current boost (BOOST) module. The module uses the second-generation high-frequency switching technology XL6009E1 as the core chip, far more than the first generation of technology performance LM2577. The XL6009 boost module features lower Cost and superior performance, and the LM2577 module is about to be eliminated.
● wide input voltage 3V ~ 32V, the best operating voltage range is 5 ~ 32V;
● Wide output voltage 5V ~ 35V;
● Built-in 4A high efficiency MOSFET switch, the efficiency of up to 94% ; (LM2577 current of only 3A)
● high switching frequency of 400KHz, you can use a small capacity of the filter capacitor that can buy very good results, smaller ripple, smaller. (LM2577 frequency is only 50KHz)
Technical Parameters:
Model specifications

XL6009 boost module
Module properties

Non-isolated Boost (BOOST)
Rectification method

Non - synchronous rectification
Input range

3V to 32V
Output range

5V ~ 35V
Input Current

4A (maximum), no load 18mA (5V input, 8V output, no load less than 18mA. The higher the voltage, the larger the no - load current.
Conversion efficiency

<94% (the greater the pressure, the lower the efficiency) (the = "" greater = "" the = "" (the="" greater="" the="" pressure,="" the="" lower="" the="" efficiency)="" (the="" greater="" the="">
Switching frequency

400KHz
Output ripple

50mV (the higher the voltage, the greater the current, the greater the ripple)
Load regulation

± 0.5%
Voltage regulation rate

± 0.5%
Operating temperature

-40 ° ~ 85 °
Dimensions

43mm * 21mm * 14mm (L * W * H)
 

 
IN Input Positive IN- Input Negative!
OUT Output Positive OUT- Output Negative
Test Comparison Example Reference:
Input 5V output 12V 0.8A 9.6W
Input 7.4V output 12V 1.5A 18W
Input 12V output 15V 2A 30W
Input 12V output 16V 2A 32W
Input 12V output 18V 1.6A 28.8W
Input 12V output 19V 1.5A 28.5W
Input 12V Output 24V 1 A 24W
Input 3V output 12V 0.4A 4.8W
Vin * Iin * Efficiency = Vout * Iout
Vin: Input voltage
Iin: Input current
Vout: Output voltage
Iout: Output current

GY-US42 Flight Control Ultrasonic Ranging Module Serial UART TTL TTL PWM Pixhawk GY-US42V2 Replace MB1242 / SRF02
Product introduction
GY-US42 is a high-quality rangefinder sensor module. Working voltage 3-5V, power consumption, small size, easy installation.
Its working principle is: the probe emits ultrasonic waves, after being irradiated to the measured object, the probe receives and returns the acoustic wave, and utilizes the time difference to calculate the actual distance.
Module has 3 ways to read data: Serial UART (TTL level), IIC, pulse PWM mode.
The serial port baud rate 9600bps and 115200bps, configurable, continuous, ask for the output of two ways. Power-save settings.
IIC can modify the internal address to facilitate an IIC bus to connect multiple modules at the same time. Pulse PWM output, same as SR04. Module can adapt to different working environment, direct link with the microcontroller. Connect the computer when you need USB to TTL module, direct connection. IIC mode can be direct, APM, Pixhawk and other flight control links.
Provide aroduino, 51, stm32 microcontroller communication procedures. Does not provide schematics and internal microcontroller source. As a result of sending and receiving integrated ultrasonic probe, ranging blind range of about 20cm, ranging within 20cm is invalid.
 
Product Features
 
Power supply 3-5V
Built-in MCU calculates the distance
IIC, serial port, PWM communication format
Close 40HZ measurement cycle
With the corresponding PC software
Integrated probe, small size
 
Technical Parameters
Measuring range: 20cm ~ 720cm (VCC = 5V)
Resolution: 1cm
Response frequency: 15HZ (full range)
Working voltage: 3-5V
Working current: 9mA (VCC = 5V)
Operating temperature: -20 degrees Celsius ~ 65 degrees Celsius
Storage temperature: -40 degrees Celsius to 85 degrees Celsius

ESP32-DevKitC V4 Getting Started Guide [] This guide shows how to start using the ESP32-DevKitC V4 development board. For description of other versions of ESP32-DevKitC check ESP32 Hardware Reference. What You Need ESP32-DevKitC V4 board USB A / micro USB B cable Computer running Windows, Linux, or macOS You can skip the introduction sections and go directly to Section Start Application Development. Overview ESP32-DevKitC V4 is a small-sized ESP32-based development board produced by Espressif. Most of the I/O pins are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-DevKitC V4 on a breadboard. To cover a wide range of user requirements, the following versions of ESP32-DevKitC V4 are available: different ESP32 modules ESP32-WROOM-32 ESP32-WROOM-32D ESP32-WROOM-32U ESP32-SOLO-1 ESP32-WROVER ESP32-WROVER-B ESP32-WROVER-I ESP32-WROVER-B (IPEX) male or female pin headers. For details please refer to Espressif Product Ordering Information. Functional Description The following figure and the table below describe the key components, interfaces and controls of the ESP32-DevKitC V4 board.
Power Supply Options There are three mutually exclusive ways to provide power to the board: Micro USB port, default power supply 5V / GND header pins 3V3 / GND header pins Warning The power supply must be provided using one and only one of the options above, otherwise the board and/or the power supply source can be damaged. Note on C15 The component C15 may cause the following issues on earlier ESP32-DevKitC V4 boards: The board may boot into Download mode If you output clock on GPIO0, C15 may impact the signal In case these issues occur, please remove the component. The figure below shows C15 highlighted in yellow.

Description:
special IIC bus control, only occupies 2 IO
Contrast adjustable, controllable backlight lamp
Using 2004 high-quality LCD screen, blue white, clear display
IIC bus control, occupy only two IO port
The backlight can be controlled, by the jumper control, can also be controlled by a program
Screen display contrast adjustable
5V voltage supply, device address 0x27
Applicable to Ardui-no platform

Description:
special IIC bus control, only occupies 2 IO
Contrast adjustable, controllable backlight lamp
Using 2004 high-quality LCD screen, blue white, clear display
IIC bus control, occupy only two IO port
The backlight can be controlled, by the jumper control, can also be controlled by a program
Screen display contrast adjustable
5V voltage supply, device address 0x27
Applicable to Ardui-no platform

 
Chip: MPU-9250 BMP280
Power supply: 3-5v (internal low dropout regulator)
Communication: standard IIC / SPI communications protocol
Chip built 16bit AD converter, 16-bit data output
Gyroscopes range: ± 250 500 1000 2000 ° / s
Acceleration range: ± 2 ± 4 ± 8 ± 16g
Magnetic field range: ± 4800uT
Pressure range: 300-1100hPa
Using Immersion Gold PCB, machine welding process to ensure quality
2.54mm pin pitch
Module size:(L*W)2.05* 1.43cm/0.81"*0.56"
 
    Package Included  
    10x   MPU9250 BMP280 10DOF Acceleration Gyroscope Compass Nine Shaft GY-91 Sensor
 
 

 
Shipping Packing List:
1, Logic 24M 8CH logic analyzer host 1 set.
2, color DuPont line 10 lines (10 different colors) 10 root.
3, high-quality USB-MINI line (NOKIAs dedicated line) 1.
Product Size: 50mm X 28mm x 14mm
Product weight: 50g (including , USB cable and 10 DuPont line)
Introduction: (support the latest version of logic 1.1.15)
Sampling speed is high:24 MHz
Logic channel sampling speed of up to 24M / s time. The general application of about 10M, enough to cope with various occasions.
8 channels
Logic 8 input - can be collected at the same time. With signal analysis, such as I2C, UART and other sampling analysis.
10 billion samples
Logic can sample up to 10 billion samples, allowing you to capture even the most elusive events.
voltage range
From logic: 5V, accepts 5.25 V, has a standard CMOS threshold logic of 0.8V low. 2.0 V logic high. The input impedance is about 1 MΩ and also see more specifications (10 pF)
protection
Protection logic of the overvoltage protection conditions of the input resistance, and the buffer chip. Better protection of equipment for safe work.
Support the latest version: 1.1.15 version

 
Description:
 
 
Module name :400W boost constant current module
Module properties: non-isolated step-up module (BOOST)
Input voltage: DC8.5V-50V
Input current: 15A (MAX) exceeds 8A please enhance heat dissipation
Quiescent current: 10mA (12V liter 20V, the output voltage, the higher the current will increase too quiet)
Output voltage: 10-60V continuously adjustable
Constant] range: 0.2-12A 
Temperature: -40 to 85 degrees (ambient temperature is too high, please enhance heat dissipation) 
Operating frequency: 150KHz
Conversion efficiency: up to 96%
Overcurrent protection: yes
Input reverse polarity protection: no
Installation: 4 2.55mm screw holes
Connection method: Connection Output
Module size: 67mm X48mm X 28mm (LxWxH)
Single module: 60 g
 
 
 
Applications:
 
 
1. DIY a power supply, 12V can input and output can 12-50V adjustable.
2. the power supply for your electronic device, according to your system can set the output voltage value. 
3. as the car power supply for your laptop, PDA or a variety of digital products supply. 
4. DIY a mobile notebook power supply: 12V coupled with high-capacity lithium battery pack, so you can go where light where books. 
5; solar panel regulator. 
6 to the battery, rechargeable lithium batteries.
7. driving high-power LED lights.

Descriptions:
KCX_BT002 is a multi-purpose bluetooth audio module with bluetooth audio and BTcall. Support matching all kinds of smart phones on the market players to play music, and support telephone voice report, answering the telephone/end calls/redial recent calls, and other functions. Simply apply this decoding board into your product, it can be upgrade normal audio cable products to a wireless bluetooth audio.
 
Features:
1. Excellent durability and coexistence
2. Ensure the stability of the Bluetooth transmission through a variety of techniques 
3. Intuitive LED indicator
4. Voice prompt, telephone voice reporting
5. The external key is easy to use without the differential resistance
6. Wireless transmission distance ≥ 10 m
7. Typical applications: Home Bluetooth Speakers, Speaker Maintenance, Car player modified, Computer Speaker Upgrade, etc.
 
Specifications:
Power Supply: 3.3-5.0V
Working Current: 35mA
Channel: Stereo
Bluetooth Version: 4.2
Working Frequency: 2400-2485MHz
Receiving Sensitivity: -85dBm
Size: 3.1x1.4cm/1.22x0.55"
Quantity: 1 Pc
 
Note: 
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
 
No Retail Package
 

Up for sale is a MELEXIS MLX90614ESF-BAA-000-TU-ND non-contact infrared thermometer for Arduino, 
or any microcontroller that can communicate with it through it's I2C interface. 
This sensor comes with a breakout board with all of the components needed for operation and two types of pins. 
They are unsoldered. Please indicate if you would like one or the other soldered. 
There are two solder jumpers for the I2C interface that may or may not need to be soldered depending on your application, 
but will not for most uses.
 
 
Features and Benefits: 
 
 
Small size, low cost 
Mounted on a breakout board with two types of pins 
10k Pull up resistors for the I2C interface with optional solder jumpers 
Easy to integrate 
Factory calibrated in wide temperature range: 
-40… 125°C for sensor temperature and 
-70… 380°C for object temperature. 
High accuracy of 0.5°C over wide temperaturerange 
(0… 50°C for both Ta and To) High (medical) accuracy calibration 
Measurement resolution of 0.02°C 
Single and dual zone versions 
SMBus compatible digital interface 
Customizable PWM output for continuousreading 
Simple adaptation for 8…16V applications 
Sleep mode for reduced power consumption 
Different package options for applications andmeasurements versatility 
Automotive grade
 
 
Applications Examples: 
 
 
High precision non-contact temperaturemeasurements 
Thermal Comfort sensor for Mobile AirConditioning control system 
Temperature sensing element for residential, 
commercial and industrial building airconditioning Windshield defogging 
Automotive blind angle detection 
Industrial temperature control of moving parts 
Temperature control in printers and copiers 
Home appliances with temperature control 
Healthcare 
Livestock monitoring 
Movement detection 
Multiple zone temperature control – up to 127sensors can be read via common 2 wires 
Thermal relay / alert

Product parameters:
 
Humidity measurement range: 0% to 99.9% (0°C-50°C range)
Humidity measurement error: ±2%
Temperature measurement range: -40 ° C ~ 80 ° C
Temperature measurement error: ±0.5°C max ±1°C
Resolution: 16 bits
Sampling period: 2s
Working voltage: 3V--5.5V

Product parameters:
 
Humidity measurement range: 0% to 99.9% (0°C-50°C range)
Humidity measurement error: ±2%
Temperature measurement range: -40 ° C ~ 80 ° C
Temperature measurement error: ±0.5°C max ±1°C
Resolution: 16 bits
Sampling period: 2s
Working voltage: 3V--5.5V

​New DHT21 AM2301 Capacitance Digital Temperature And Humidity Sensor