This is a simple board takes input up to ~30 VDC and powers a Wemos D1 Mini. The Wemos D1 controls a MOSFET which switches the input voltage, and has I2C broken out to a 4 pin header. Useful for ...

Older versions of NCS314 had PWM2 and PWM3 signals that together with with PWM1 controlled the red/green/blue LEDs for illumination but here, only PWM1 is used to control all individually addressable ...

Open AirGradient is a DIY air quality monitor based on the Wemos D1 mini ESP8266 WiFi IoT board programmed with Arduino and fitted with a range of sensors including an optional Sensirion SGP41 TVOC ...

LOLIN S3 Mini is a tiny ESP32-S3 WiFi and Bluetooth IoT development board that follows the Wemos D1 Mini form factor and supports its equally tiny stackable shields to add relays, displays, sensors, ...