Thingiverse
Z-axis optical endstop for ANET A8 by ZDMaster
by Thingiverse
Last crawled date: 4 years, 7 months ago
D1, Q1 - Photo-interrupter (I found it in laser printer)
T1 - KT502 PNP-transistor, replacement - BC327
R1 - 1 kOhm resistor 0.125W
R2-R3 - 10 kOhm resistors 0.125W
I am not good in electronic circuit, but it is works good!
As you know, anet v1.0 has no open source code. Endstops inputs configured by INPUT_PULLUP. So, normal state to input Z would be HIGH. Thats why i install T1 transistor.
T1 - KT502 PNP-transistor, replacement - BC327
R1 - 1 kOhm resistor 0.125W
R2-R3 - 10 kOhm resistors 0.125W
I am not good in electronic circuit, but it is works good!
As you know, anet v1.0 has no open source code. Endstops inputs configured by INPUT_PULLUP. So, normal state to input Z would be HIGH. Thats why i install T1 transistor.