RaceBox Mini Emulator case with battery and switch
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RaceBox Mini case features a GPS, gyroscope, battery (lipo) + charger, switch and proper heat inserts.
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- Printables
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- Automotive
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- Creative Commons — Attribution — Noncommercial — Share Alike
Do not use any carbon filled materials, they are conductive!
Do not use PLA, it will melt. Use a UV-stable, heat-resistant filament like ABS/ASA/PC/PCTG.
I did this remix to fit a 820mAh Lipo and a micro-switch I had lying around. Additionally I fitted a small LiPo BMS module that acts as both a charger when plugged in and as a 5V BEC when unplugged to power the entire device off of the battery.
List of materials:
- ESP-32 CP2102 USB-C 30pin dev board
- Matek SAM-M10Q M10Q GPS
- MPU6050 gyroscope board
- 820mAh LiPo battery or similar size (30x44x7mm)
- Micro-switch with mounting holes (4-5mm switch length)
- Lipo charger board with 5V BEC
- 10-12 M2x3 heat inserts
- Scotch/3M double-sided automotive tape
Unsolder all pins from the ESP-32. Wire GPS, Gyro and LiPo charger board inputs to 5V/GND on the ESP32, put the switch onto a battery lead so you can physically shut the device off. Connect the battery leads to the B-side on the lipo board. Then solder all other data-wires. Use some double sided tape on Lipo Charger board, GPS and lipo (stick the lipo to the lid).
When switched off and plugged in on the ESP32 the device will run off of external power without charging the Lipo. When plugged in and switch on the external power will both run the device and charge the Lipo. When unplugged and switched on it will run from internal LiPo.
A full charge takes about 1h (charges at 1A) and lasts for multiple hours.