ccecil / pwmboard Goto Github PK

This board is to be used to expand the PWM header from a V2 Smoothieboard (or Gadgeteer) header.

• 4 mosfet buffered PWM outputs with jumper options to select between Pullup voltages and/or disable the pullup resistor for Opendrain outputs.
• 2 Switch inputs which are debounced with passives and have optional pullup resistor/voltage.
• 1 Comparator probe input which increases the repeatability of probes and allows use of probe voltages from 3-45v (through jumper configs)
• Optional voltage input for using higher voltages on the PWM output pin3 (i.e. Running higher voltages to the servo motor or using different 5v source)

Comparator probe input jumper options

• J5 pin 3 input voltage set to
• 2.9v-5v (default)
• 5-24v (JP5-2 cut)
• 6-45v (JP5-2 and JP5-3 cut)

PWM output and Switch input jumpers.

• JP2: J6-J9 pin 3 optional voltage source select (J1 Pin 2 default, cut to use J2 Pin 1)
• JP3-1: J3 pin 1 and pin 3 pullup Voltage select
• JP3-2: J3 pin 3 pullup disable
• JP4-1: J4 pin 1 and pin 3 pullup Voltage select
• JP4-2: J4 pin 3 pullup disable
• JP5-1: J5 pin 1 Voltage select
• JP5-2: J5 pin 3 pullup cut (required for HV operation)
• JP5-3: J5 pin 3 Low/High voltage select (default low)
• JP6: J6 pin 1 pullup Voltage select
• JP7: J7 pin 1 pullup Voltage select
• JP8: J8 pin 1 pullup Voltage select
• JP9: J9 pin 1 pullup Voltage select

Jumper and connector numbers match their respective driving pin from the J1 header