能量采集 无线传感器网络(WSNs Wireless Sensor Networks)的一个重要讨论和研究课题一直是传感器节点的能量消耗。很明显,越少越好。如果你有一些开发电池操作的无线设备的经验,你知道运行到睡眠的概念,这意味着做完工作后尽快进入睡眠模式,以保存最宝贵的资源--能源。尽管如此,无论你做什么,传感器节点必须消耗能量,用户在...
https://arduinomodules.info/ky-005-infrared-transmitter-sensor-module/ 【5】Getting Started with Wemos D1 mini ESP8266 Board, DHT & Relay Shields:支持dht11/22 示例演示 https://www.cnx-software.com/2016/03/22/getting-started-with-wemos-d1-mini-esp8266-board-dht-relay-shields/ 【6】格力空...
设置红光和红外光,三种模式,同上,可以看前言里的MAX30102分析。 if(ledMode ==3) setLEDMode(MAX30105_MODE_MULTILED);//Watch all three LED channelselseif(ledMode ==2) setLEDMode(MAX30105_MODE_REDIRONLY);//Red and IRelsesetLEDMode(MAX30105_MODE_REDONLY);//Red onlyactiveLEDs = ledMode;/...
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor //引脚连接说明,特别提出如果板子是3.3v逻辑的dht电源就接3.3v而不要接5v,比如我们的wemos D1 MIni // Initialize DHT sensor. // Note that older versions of this library took an optional third parameter to // tw...
I am using an ESP32 with a Max30102 sensor to get HR readings. I also use ESP-IDF and the <driver/i2c.h> library to access the needed memory registers. From my understanding of the Max30102 sensor documentation, I have two registers, FIFO_RD_PTR and FIFO_DATA, that give me access ...
BME280 humidity/temperature/pressure sensor Adafruit BME280 Arduino library BME280 driver Reading values from a BME280 via ESP-IDF's I²C master driver ESP32 MicroPython BME280 MQTT sample Cameras Igrr's ESP32-Cam-Demo (using OV7725) Should work with other OV7xxx series cameras. Also, ...
Interfaces: SD-card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S , IR, GPIO, capacitive touch sensor, ADC, DAC, Hall sensor, temperature sensor Operating temperature -40 + 85C Operating voltate: 2.2-3.6V Consumption: 80 mA typ ...
名称EN SENSOR_VP SENSOR_VN IO34 IO35 IO32 IO33 IO25 IO26 IO27 IO14 IO12 GND IO13 SHD/SD2* SWP/SD3* SCS/CMD* SCK/CLK* SDO/SD0* SDI/SD1* IO15 IO2 IO0 IO4 IO16 IO17 IO5 IO18 IO19 NC IO21 RXD0 TXD0 IO22 IO23 GND 编号3 4 5 6 7 8 9 10 11 12 13 14 15 16...
使用ArduinoIDE烧录(HeartRate_SPO2_arduino/HeartRate_SPO2_arduino.ino/HeartRate_SPO2_arduino.ino)需要安装SparkFun_MAX3010x_Sensor_Library库。 使用MicroPython(HeartRate_SPO2_micropython/*)注:该目录所有文件都需要上传到板子里。 PC安装Python依赖库,在(HeartRate_SPO2/HeartRate_SPO2_PC)目录pip install -r...
Module interface: SD card, UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, two-wire automotive interface (TWAI®, compatible with ISO11898- 1) On-chip sensor: Hall sensor Integrated SPI flash: 4 MB Working voltage/supply ...