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Rc car

qb-creates·rc-car·eda/rc-car-kicad/rc-car-kicad.kicad_pcb

Rc car PCB layout, top view — open source AVR/Arduino board by qb-creates

About the Rc car PCB

Rc car is an open source AVR/Arduino PCB design by qb-creates, published on GitHub under the MIT license. It is a 2-layer board measuring 35 × 40 mm, with 50 components from 29 distinct parts.

Its main chip is the ATmega164A-A, from the AVR/Arduino family. Other key parts include the TPS3840, MIC3975-5.0YMM and MIC5225-3.3YM5. By type, the board carries 15 resistors, 10 connectors, 9 capacitors, 6 transistors, 5 diodes and 4 ICs.

It belongs with the iot & wireless, robotics & motion and rf & radio designs in this gallery.

From the project

Custom DIY RC car featuring in-house PCB design, 3D-printed components, and dual ATmega164A firmware for wireless drive and steering control.

- Project Video (YouTube): https://youtu.be/qdBbDeDglmY - Bidirectional Motor Driver (H-Bridge): https://en.wikipedia.org/wiki/H-bridge - Steering Servo PWM Control: https://en.wikipedia.org/wiki/Servo_control - nRF24L01 Wireless Transceiver Module: https://www.instructables.com/NRF24L01-Tutorial-Arduino-Wireless-Communication/

The RF stack is configured in configureRFRadio() with:

Rc car, from the project README
From the project README

Main components on the Rc car

TPS3840MIC3975-5.0YMMMIC5225-3.3YM5ATmega164A-A

Rc car bill of materials (BOM)

50 components, 29 distinct parts.

QtyPartRefs
1
TPS3840
U1
1
MIC3975-5.0YMM
U2
1
MIC5225-3.3YM5
U3
1
ATmega164A-A
U4
2
MMBT3904
Q1, Q4
2
IRLML2246
Q2, Q3
2
IRLML6244
Q5, Q6
2
~
J1, J3
1
~
J2
2
~
J4, J5
1
~
J6
2
~
J7, J16
1
~
J8
1
~
J17
1
SW_SPST
SW1
1
LED
D1
4
1N5819HW-7-F
D2, D3, D4, D5
1
200uF
C1
2
1uF
C2, C4
1
10uF
C3
Show 9 more
QtyPartRefs
1
2.2uF
C5
4
.1uF
C6, C7, C8, C9
1
470k
R1
1
500k
R2
1
150k
R3
1
1.5k
R4
5
10k
R5, R8, R9, R13, R14
4
1.3k
R6, R7, R10, R11
2
10
R12, R15

Rc car design files

The KiCad project lives in the qb-creates/rc-car repository on GitHub; these links point at the commit this page was built from.

Rc car: common questions

What microcontroller does the Rc car use?

The Rc car is built around the ATmega164A-A, from the AVR/Arduino family.

How big is the Rc car PCB?

The Rc car measures 35 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rc car?

50 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rc car design files?

From the qb-creates/rc-car repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Rc car design in my own project?

Yes, under the terms of its MIT license, which qb-creates chose for the repository.

Can I test firmware for the Rc car without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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