Bar graph reader circuit
Industrial Router Crystal 3.2*2.5mm 3225 26M (26.000MHZ) 12PF 10PPM 20PPM 30PPM
Photocoupler
The transistor switch lines of the LEDs are turned on one after the other to display the input voltage for the rising columnar display. R2 adjusts the minimum range (0.1-0.5V) of 5 LEDs in 0.1V increments to the maximum range (1.0-10.0 V) in 1V increments. The input resistance of the circuit is greater than 100,000 ohms.
Jiangmen Hongli Energy Co.ltd , https://www.honglienergy.com