RC Exhaust Digispark
About the RC Exhaust Digispark PCB
RC Exhaust Digispark is an open source PCB design by tebl, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 25.3 × 29.2 mm, with 12 components from 11 distinct parts.
Other key parts include the Digispark. By type, the board carries 5 resistors, 2 connectors, 2 jumpers, 2 diodes and 1 module.
From the project
Various projects on the road to creating a more interesting system for lights on RC cars. It won't be small, but at least I'll have fun making it.
The plan was to have the exhaust pipe glow red on heavy throttle, then backfire when easing up on the throttle. It'll throw in some regular sparks here and there to make it come alive a bit more than that, but the code is included here if you want something else.
- 1> Building the device - 2> Schematic - 3> BOM
The Attiny85 is a 5v chip, and we're connecting it to a 6v source due to it living inside an RC. Normally that would toast it as we're working outside the acceptable ranges, but we're using a diode with a voltage drop that's up to 0.7v - bringing us withing the tolerances of the…
Main components on the RC Exhaust Digispark
RC Exhaust Digispark bill of materials (BOM)
12 components, 11 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Digispark | Digispark | A1 |
| 1 | THR | PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | THR_Y | PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | NO_VOL_DIV | bridge_open | JP1 |
| 1 | POWER | bridge | JP2 |
| 1 | LED_RGBA | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | D1 |
| 1 | 1N4001 | D_DO-41_SOD81_P10.16mm_Horizontal | D2 |
| 1 | 200 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 2 | 270 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 20k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
RC Exhaust Digispark design files
The KiCad project lives in the tebl/RC-Light-System repository on GitHub; these links point at the commit this page was built from.
RC Exhaust Digispark: common questions
How big is the RC Exhaust Digispark PCB?
The RC Exhaust Digispark measures 25.3 × 29.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RC Exhaust Digispark?
12 components, from 11 distinct parts. The full bill of materials is listed on this page.
Where can I download the RC Exhaust Digispark design files?
From the tebl/RC-Light-System repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the RC Exhaust Digispark design in my own project?
Yes, under the terms of its CERN-OHL-1.2 license, which tebl chose for the repository.
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