Casey Anderson, 2018
This repository provides Printed Circuit Board (PCB) files, as well as software examples, for an Arduino-based TIP120 actuator controlled via Potentiometer (or any Voltage Divider). As described (in more detail) here, the TIP120 is capable of actuating a variety of devices including brushless DC motors, vibration motors, solenoids, and lightbulbs.
This double-sided Pin Through Hole (PTH) PCB was created in EAGLE.
VCC is supplied to the Arduino Mini via RAW (12V maximum). VCC is also passed to the T pin of the CONN JACK STEREO 3.5MM. Connection to motors/solenoids/whatever is accomplished via 3.5mm audio cable. Rate of actuation is set via Potentiometer and passed to Arduino Mini via A0.
Note: items without a Manufacturer Part Number are generic.
- 1x Arduino Pro Mini (3.3V, 8MHz)
- 1x SWITCH SLIDE SPDT 200MA 30V,
EG1218 - 1x CONN PWR JACK 2X5.5MM SOLDER,
PJ-102A - 1x CONN JACK STEREO 3.5MM,
SJ1-3523N - 1x POT 10kR 1/20W CARBON LOG,
PTV09A-4020F-A103 - 1x TIP120
- 1x 1N4004 Diode
- 1x 220R
- 1x 2.2kR
- 1x 5mm LED
- 1x Motor/Solenoid/Light
Currently only the absolute simplest example of PWM. More to follow.