Smart Pullup Bar
On my previous team, we liked to have “pull-up standups”---after our status meeting, we’d take turns on the pullup bar, keeping a whiteboard tally of our personal records.
I built a sensor and record-keeping system for our office pull-up bar. You scan your work badge, then it counts your pullups and adds them to your record.
Completed pull-up bar with sensor
Close-up of sensor
Proximity sensor reading log, used for calibrating thresholds
Sign-in screen on the Web UI
Modeling the enclosure in Autodesk Inventor
Assembling the 3D printed electronics enclosure
3D printed mount for the proximity sensor
Testing the sensor on the workbench
Features:
- Raspberry Pi with touchscreen LCD.
- Wi-Fi connected with web UI
- RFID badge reader
- IR proximity sensor
- 3D printed enclosure for the Pi and badge reader.
- 3D printed mount for the IR proximity sensor, to attach onto a GoPro gooseneck arm clamped onto the pullup bar.