Attiny84-usbc
About the Attiny84-usbc PCB
Attiny84-usbc is an open source AVR/Arduino PCB design by mothenjoyer69, published on GitHub under the MIT license. It is a 2-layer board measuring 27.6 × 17.9 mm, with 20 components from 13 distinct parts.
Its main chip is the ATtiny84-20SS, from the AVR/Arduino family. Other key parts include the L78L05_SOT89. By type, the board carries 7 resistors, 5 diodes, 4 connectors, 2 ICs and 2 capacitors.
Main components on the Attiny84-usbc
Attiny84-usbc bill of materials (BOM)
20 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATtiny84-20SS | SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | L78L05_SOT89 | SOT-89-3 | U2 |
| 1 | Conn_01x03_Socket | PinSocket_1x01_P2.54mm_Vertical | J2 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J3 |
| 2 | Conn_01x07_Socket | PinHeader_1x07_P2.54mm_Vertical | J4, J5 |
| 2 | LED | D_0603_1608Metric | D1, D2 |
| 2 | 3.6v | D_0805_2012Metric | D3, D4 |
| 1 | D | D_0805_2012Metric | D5 |
| 1 | 0.1uF | C_0402_1005Metric | C1 |
| 1 | 4.7uF | C_0402_1005Metric | C2 |
| 4 | 5.6k | R_0402_1005Metric | R1, R2, R3, R4 |
| 2 | 68r | R_0603_1608Metric | R5, R6 |
| 1 | 1.5k | R_0603_1608Metric | R7 |
Attiny84-usbc design files
The KiCad project lives in the mothenjoyer69/pcb-design-files repository on GitHub; these links point at the commit this page was built from.
Attiny84-usbc: common questions
What microcontroller does the Attiny84-usbc use?
The Attiny84-usbc is built around the ATtiny84-20SS, from the AVR/Arduino family.
How big is the Attiny84-usbc PCB?
The Attiny84-usbc measures 27.6 × 17.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Attiny84-usbc?
20 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the Attiny84-usbc design files?
From the mothenjoyer69/pcb-design-files repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Attiny84-usbc design in my own project?
Yes, under the terms of its MIT license, which mothenjoyer69 chose for the repository.
Can I test firmware for the Attiny84-usbc 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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