4 and 19 pins are used to adjust the display contrast through a resistor. I use a 1 Mega Ohm variable resistor. Acceptable contrast ~270kOm.

Lian Li's new HYDROSHIFT II LCD-C Series is now available to order, offering a unique offline dial for changing the pump ...

Unexpected Maker's SQUiXL is a battery-powered ESP32-S3 WiFi and Bluetooth IoT controller and development platform with a ...

Linux: the ultimate Windows 10 upgrade? The bad news: Windows 10 is definitely going end of life this year. The good news: these Linux distros are ready and waiting to take advantage. APC tells ...

remote mount humidity and temperature transmitter with LCD display US 29.96-98.86 / Piece 10 Piece/Pieces (Min.Order) remote mount humidity and temperature transmitter with key board US 32.96-98.86 / ...

Welcome to the GXHTC3 repository! This library allows you to easily interface with the GXHTC3 temperature and humidity sensor using I2C. Whether you are building a weather station, a smart home device ...

This study uses Arduino Mega microcontroller as the main control ... When going to use hot water, blind people can choose a temperature with a setpoint of $50^{\circ}\mathrm{C}, 70^{\circ}\mathrm{C}, ...

We made a prototype that carries out different procedures for example, if the patient's temperature rises above 38 degrees Celsius, it will send messages to the doctor that there is a patient who ...

*HN series current products are powered on RH circuit, so the RH circuit must be powered. Otherwise it could not work. ♦ Specilizng in manufacturing products of HVAC for almost 10 years. ♦ Harsh ...