2 layers20.7 × 41.1 mm
4809RcLarge
flitebits/rclib
Atmega 4808/4809 hardware support focused on Radio Controlled aircraft
45 partsApache-2.0
2 layers24 × 27 mm
4809Rc
flitebits/rclibAtmega 4808/4809 hardware support focused on Radio Controlled aircraft
- Size
- 24 × 27 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 50
- Pads
- 164
- Tracks, vias
- 348, 26
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Oct 2019
- Updated
- 10 Oct 2026
Overview
4809Rc is an open-source printed circuit board by flitebits, from the flitebits/rclib repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 24 × 27 mm with 47 parts on 50 nets, routed with 348 tracks and 26 vias.
It is built around the ATMEGA4809-MU. Its parts include 13 resistors, 9 connectors, 6 transistors, 4 capacitors and 1 IC. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdRCLib
This is a basic example of bringing up the ATMega 4808/4809 and enabling the most common hardware. I wrote this so I could use it to control various features in RC aircraft (telemetry and lights mostly).
I also have some small board designs for the 4808/4809 that I may include as well.
It has support for:
- SBus protocol (channel information from radio)
- S.Port Protocol (only for volts/amps reporting)
- DSHOT 600 (bit bang) to set motor speed and get telemetry from ESC
- Analog to Digital conversion (to read battery volts/amps)
- PWM for controlling 'dumb' leds
- APA102 (via SPI) & WS2812 (via bit bang)
- Serial used by several protocols above as well as for debugging
- Some simple RGB functions for LED control
- Very minimal debugging log/print support
- RTC clock
Licensed under the Apache 2.0 license (see the file LICENSE-2.0 for details). Please let me know if you decide to use it.
Flite Bits flitebits@gmail.com
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | PC3, TP1, TP2, TP3, TP4, TP5, TP6, TP7 |
| 6 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R7, R8 |
| 6 | Q_NMOS_GSD | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4 |
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric | 100nF1, 100nF2, 100nF3 |
| 3 | 1K | Resistor_SMD:R_0603_1608Metric | R9, R12, R13 |
| 2 | 100K | Resistor_SMD:R_0603_1608Metric | R5, R10 |
| 2 | 33K | Resistor_SMD:R_0603_1608Metric | R6, R11 |
| 2 | Conn_01x04_Male | Connector_Molex:Molex_PicoBlade_53048-0410_1x04_P1.25mm_Horizontal | J6, J8 |
| 2 | Conn_01x06_Male | Connector_Molex:Molex_PicoBlade_53048-0610_1x06_P1.25mm_Horizontal | J2, J4 |
| 1 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | 2.2uF1 |
| 1 | ATmega4809-M | Package_QFP:TQFP-48_7x7mm_P0.5mm | U1 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | Conn_01x03_Female | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Conn_01x05_Male | Connector_Molex:Molex_PicoBlade_53048-0510_1x05_P1.25mm_Horizontal | J5 |
| 1 | Conn_01x07_Male | Connector_Molex:Molex_PicoBlade_53048-0710_1x07_P1.25mm_Horizontal | J7 |
| 1 | Conn_01x09_Male | Connector_Molex:Molex_PicoBlade_53048-0710_1x07_P1.25mm_Horizontal | J1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Castellated | D1 |
| 1 | L_Core_Ferrite | Inductor_SMD:L_0603_1608Metric | L1 |
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Questions
How big is the 4809Rc PCB?
It measures 24 × 27 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 4809Rc use?
47 parts, built around the ATMEGA4809-MU. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the 4809Rc KiCad files?
From the flitebits/rclib repository on GitHub, at the commit this page was made from: the board is board/KiCad/4809RC_QFP/4809Rc.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 4809Rc design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).