[coilTouch] probe

General Discussion
1

Basic Information:

Printer Model: ender e3
MCU / Printerboard: Fyscet s6
klippy.log log doesn’t needed

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Describe your issue:

…
Hello :wave:
I want to make bfptouch from +5v coil without using a servo.
Tell me please, how to make a new configuration?
I found out, that I need to use [output_pin]
Here is the working configuration for [bfptouch] in my printer:

[servo BFPTouch]
pin: PA3
initial_angle: 131
maximum_servo_angle = 180
minimum_pulse_width = 0.0005
maximum_pulse_width = 0.0024

[probe]
pin: ^PA0 #using z-endstop pin
x_offset: 0.0
y_offset: 0.0
z_offset: 1.0
speed: 3.0
samples: 2
activate_gcode:
SET_SERVO SERVO=BFPTouch ANGLE=180
G4 P300
deactivate_gcode:
SET_SERVO SERVO=BFPTouch ANGLE=131

A have a little coil it turns on +5v
It has only 2 wire VCC and GND
If we give it +5v, the probe goes down. If we turn off the power, the probe goes back automatically home position.
And I want to make from OptoSensor and this little coil
Some kind of bfptouch. Help me please with configuration. Thank you

2

See Servo deployed ABL Z homing issue and fix

3

Thank you, but I need something else.
I’m working on a new bfptouch. In my project I don’t use any servos

4

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5

IMG_20230907_225607_413

6

Most printer boards today have a TTL level of 3.3V and only very few are 5V tolerant on their pins.
What you like to do would likely require a level-shifter, e.g. https://www.sparkfun.com/products/12009
Potentially, the current needed to operate the coil could be a blocking point. You need to check this.

7

…and if you are searching for a way to toggle your pins, respectively query its state, then have a look at:

As an alternative, I have a daft day and do not understand what you are referring to.

8

Thank you for your help, actually I don’t need this converter. In my printerboard I have a 2 pins,
+5v pin- PA3 and
+3.3v pin - PA0