HardLabs

85RF

danchouzhou·85RF·kicad/remote.kicad_pcb

85RF PCB layout, top view — open source AVR/Arduino board by danchouzhou

About the 85RF PCB

85RF is an open source AVR/Arduino PCB design by danchouzhou, published on GitHub. It is a 2-layer board measuring 31.8 × 55.9 mm, with 19 components from 14 distinct parts.

Its main chip is the ATtiny85-20S, from the AVR/Arduino family. Other key parts include the Ai-Thinker NF-03. By type, the board carries 5 diodes, 5 resistors, 3 switches, 2 ICs, 2 battery holders and 1 connector.

From the project

A 2.4G remote control made with ATtiny85

85RF, from the project README
From the project README

Main components on the 85RF

ATtiny85-20SAi-Thinker NF-03

85RF bill of materials (BOM)

19 components, 14 distinct parts.

QtyPartRefs
1
ATtiny85-20S
U1
1
Ai-Thinker NF-03
U2
1
ICSP
J1
1
Keystone_3002
BT1
1
—
BT2
3
EVQ-Q2K02W
SW0, SW1, SW2
1
LTST-C170KFKT
D1
1
3.3V
D2
3
D
D3, D4, D5
1
100nF
C1
1
36R
R1
2
10K
R2, R3*
1
22R
R4
1
4*200R
RN1

85RF design files

The KiCad project lives in the danchouzhou/85RF repository on GitHub; these links point at the commit this page was built from.

85RF: common questions

What microcontroller does the 85RF use?

The 85RF is built around the ATtiny85-20S, from the AVR/Arduino family.

How big is the 85RF PCB?

The 85RF measures 31.8 × 55.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 85RF?

19 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the 85RF design files?

From the danchouzhou/85RF repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 85RF design in my own project?

The repository has no license, so all rights stay with danchouzhou. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 85RF 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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