Read a DHT22 on an ESP32-C3 and Print to Serial
Wire a DHT22 to an ESP32-C3 in Mokxi, pick a safe GPIO, power it from 3.3 V and print temperature and humidity to the serial monitor at 115200 baud.
Posts tagged “sensors”
News from the workbench: what we shipped, how it works and guides for building with it. Follow by RSS or see every update.
Make a Porch Light That Turns On at Dusk
Build a dusk light in Mokxi with a photoresistor sensor and an Arduino Uno, and use hysteresis so the lamp does not flicker as the light fades.
Sweep a Servo and Control It with a Knob on Arduino Uno
Sweep a hobby servo back and forth, then turn it with a potentiometer on an Arduino Uno. Wiring, full sketches and jitter fixes, in your browser.
Measure Distance with an HC-SR04 and Arduino Uno
Wire an HC-SR04 to an Arduino Uno in Mokxi, time the echo with pulseIn, print centimeters to the serial monitor and smooth jumpy readings.
Read a DHT22 Temperature and Humidity Sensor on Arduino Uno
Wire a DHT22 to an Arduino Uno in Mokxi, read temperature and humidity on the serial monitor, and learn why a reading comes back NaN.