DIY Smart Deck Lights | ESPHome | Home Assistant controlled

Building a Home Assistant controlled ESP32 based controller for deck LED lights via ESPHome. Software: ESPHome

November 30, 2020 · Debashish Sahu

Resurrecting a GPU Cooling Fan Using a Micro-Processor and PWM

Trying to rescue a GPU cooling system containing a 12V 4-wire fan using a PWM signal from ATtiny85 and reading a voltage from ADC from a potentiometer knob. Ultimately building a 4-wire fan controller. 25kHz PWM on ESP8266: https://github.com/esp8266/Arduino/issues/4598 Software

June 16, 2018 · Debashish Sahu

MOSFET Used as Switch to Control a 12V Fan

Lets turn on and off low powered fan running at low (<20V) DC voltages. We shall use a MOSFET to achieve this. Hardware IRLML0030PBF ATTiny85 2-pin 12V Fan Wiring MOSFETs have three terminals Drain (D), Source (S) and Gate (G), where source is connected to ground and the +12V or +5V along with load (Fan) is connected to drain. The MOSFET is on when gate voltage is higher than 1.7V and turned off when gate voltage is 0V. ...

March 12, 2017 · Debashish Sahu