The software repo for a cheap alternative to the Hudl remote devices
Hudl remotes are used by Coaches all over the country (world?), and they're incredibly expensive at $200, despite being some cheap plastic and some buttons. I think I can 1) open source this and 2) make it significantly cheaper, no more than maybe $50
Unfortunately, the pico uses the Cmake build system which is an utter piece of garbage, so you'll have to deal with that to build the project. Sorry. Nothing I can do.
The project is separated into two parts:
- The HID device which acts as a mouse and keyboard on the computer to control Hudl
- The Physical device which takes button and PSP thumbstick inputs and sends them to the HID device
Now, the Pico is overkill for this project. However, at $4, it's not unreasonable to use them, so why the heck not?
To install needed dependencies (on Debian) run sudo make install-deps
To build the two board files run make
There's also an arduino program under "bluetooth" used to program the HC-05 modules. Note: The slave bluetooth device's address is currently "ADDR:0020:12:080CE5", but other devices will have different addresses
This is the approximate cost of building it for myself. Note that were it mass-produced, cost would almost certainly be even cheaper
| Item | Quantity | Total Price |
|---|---|---|
| Raspberry Pi Pico microcontrollers | 2 | $8 |
| HC-05 Bluetooth modules | 2 | $4.66 |
| 6mm Push-Buttons | 9 | $0.42 |
| 3.7v Lipo Battery 1200mAh | 1 | $9.95 |
| USB-C Lipo charger | 1 | $5.95 |
| PowerBoost 500 Basic | 1 | $9.95 |
| JST PH 2-Pin Cable | 1 | $0.75 |
| Thumb Stick | 1 | $2.50 |
| Switch | 1 | $0.95 |
| Total | 1 | $43.13 |
This also doesn't take into account the cost of solder used, wire used, or the enclosure.
It's pretty ugly, but I got it into a fairly rigid container so it can actually be used:
Power system comprised of battery, power switch, charger, and 5V booster:
HC-05 bluetooth module:
Controls system comprised of 9 buttons and a PSP thumbstick:
Completed remote without casing:
