8/10/2023 0 Comments Doxygen onlineArduino Pro or Pro Mini at 8MHz is recommended. DHT22LowPower LowPower AVR targets only.DHT22Logging Write temperature and humidity every 10 minutes to.DHT22DurationTest Test reliability connection.DHT22Average Calculate average temperature and humidity.Other MCU's may work, but are not tested.Īrduino IDE | Examples | Erriez DHT22 Temperature & Humidity:.GPIO4 uses sketch pin number 4 and is labeled as D2 on some WeMos ESP8266 boards.This may stabilize the power supply.Īrduino UNO / Nano / Micro (ATMega328 boards)ĮSP8266 (ESP12E / WeMos D1 R2 / NodeMCU v2 or v3)ĮSP32 (WeMos Lolin32 OLED / WeMos LOLIN D32) Tip: Connect a 100nF capacitor between the sensor pins VCC and GND when read errors occurs.In this class we will use it extensively for the C++ projects. Doxygen can be used to generate code for a variety of languages, including Java and C++. Please refer to the MCU datasheet or board schematic for more information about IO pin pull-up resistors. Doxygen is a popular tool to document your code, i.e.The DHT22 breakout PCB contains a 3k3 pull-up resistor between DAT and VCC.Using a AM2302/AM2303 sensor without a DT22 breakout PCB and the MCU IO pin has no built-in or external pull-up resistor.Connect an external 3k3.10k pull-up resistor between the DAT and VCC pins only when:.It may not be used in safety critical applications, emergency stop devices or any other occasion that failure of AM2302/AM2303 may cause personal injury. Everything is basically done through the special branch called gh-pages. ~31ms to synchronous read humidity, temperature and parity data from sensor (5 Bytes)Īccording to the datasheet, the AM2302/AM2303 is a low cost consumer temperature sensor. Download ZIP How to automatically generate doxygen documentation using Travis Raw README.md Introduction A clean and handy way to deal with your documentation is to exploit the GitHub Pages, which represents a nice tool to publish software documentation online.Accuracy: +/-2 RH (at 25 degree Celsius).No additional electronic components needed. ![]() ![]()
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