j-rpm Goto Github PK

attiny-timer_garage

Timed automatic closing for a garage door.

capacimeter

Building a capacitance meter with Arduino, using the 'CapacitorLite' and 'Capacitor.h' libraries.

capacimeter-level

clock-text_esp32

The LED display can show the time, or rotating texts of up to 255 characters. Both the operating mode and its configuration are programmed through a WiFi connection, and stored in the EEPROM memory of the ESP32 module. In this way the clock always starts in the mode in which it was last left: text mode, or clock mode.

consumption-control-of-surplus-solar-energy

Precision clock firmware update (ESP32), to control the automatic on and off of an electrical outlet.

dcf77-transmitter

DCF77 transmitter with ESP32 and ATmega328p

esp32_clock-fronius

Precision clock that shows, in addition to the date and time, the power measurements of a Fronius solar inverter.

level-of-a-tank-with-ultrasound

precision-clock_esp32

Precision clock, configured by WiFi

precision_clock_esp32_7segment

This display is built with the ESP32 module and 8-digit 7-segment LED, being able to connect a second OLED display of 64x48 pixel (0.66 inch).

rds_radio_si4703

Radio receiver FM-RDS with Arduino. Based on the SI4703 module

solar-controller-with-esp32

Control the automatic switching on and off of two air conditioning units, depending on the surplus of solar energy