Power Supply LCD
author: sjm
2 layer board of 1.73 x 1.03 inches (43.9 x 26.1 mm)
Uploaded:
June 08, 2016
Shared:
June 08, 2016
Total Price:
$8.85
PIC16F88 micro-controller driving an old Optrex 16x2 LCD to display 3 voltages and 2 currents. Currents are measured using MAX4172 high side sensors and negative LCD contrast voltage is generated with a PWM based charge-pump.
PIC16F88 micro-controller driving an old Optrex 16x2 LCD to display 3 voltages and 2 currents. Currents are measured using MAX4172 high side sensors and negative LCD contrast voltage is generated with a PWM based charge-pump.