HardLabs

Cmote

Person-0·Cmote·PCB/Cmote/Cmote.kicad_pcb

Cmote PCB layout, top view — open source AVR/Arduino board by Person-0

About the Cmote PCB

Cmote is an open source AVR/Arduino PCB design by Person-0, published on GitHub. It is a 4-layer board measuring 21.2 × 30.6 mm, with 15 components from 11 distinct parts.

Its main chip is the ATTINY1616-MNR, from the AVR/Arduino family. Other key parts include the IR16-213C/L510/TR8 and CH340N. By type, the board carries 5 capacitors, 4 resistors, 3 ICs and 1 transistor.

It belongs with the dev boards & breakouts and usb & debug tools designs in this gallery.

From the project

A USB-C IR transmitter for controlling devices like ACs, TVs for when you're too lazy to find the remote and your smartphone does not have a built-in IR blaster. Built-in to a devboard powered by the Attiny1616 MCU.

A USB-C IR transmitter for controlling devices like ACs, TVs for when you're too lazy to find the remote and your smartphone does not have a built-in IR blaster. Built-in to a devboard powered by the Attiny1616 MCU.

Steps to open the schematics and PCB files in KiCAD: - Open KiCAD - Click File (top left) >> Open Project - Navigate to this repository's saved destination, - Open /PCB/Cmote directory - Select the file Cmote.kicadpro`

Cmote, from the project README
From the project README

Main components on the Cmote

ATTINY1616-MNRIR16-213C/L510/TR8CH340N

Cmote bill of materials (BOM)

15 components, 11 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY1616-MNR
MICROCHIP(美国微芯)
U1
1
IR16-213C/L510/TR8
EVERLIGHT(亿光)
U2
1
CH340N
CH340N_C2977777
WCH(南京沁恒)
U3
1
Si2302CDS-T1-GE3
VISHAY(威世)
Q1
1
RC0402FR-07470RL
470
YAGEO
R_UPDI0
1
HYCW671-USBC14-115B
HOAUC(华宇创)
USB1
1
CC0402KRX5R7BB474
4.7uF
YAGEO
C1
4
CC0402KRX5R7BB104
0.1uF
YAGEO
C2, C3, C4, C5
1
RC0402JR-07180RL
180
YAGEO
R1
1
RC0402FR-07100RL
100
YAGEO
R2
2
RC0402FR-075K1L
5.1k
YAGEO
R3, R4

Cmote design files

The KiCad project lives in the Person-0/Cmote repository on GitHub; these links point at the commit this page was built from.

Cmote: common questions

What microcontroller does the Cmote use?

The Cmote is built around the ATTINY1616-MNR, from the AVR/Arduino family.

How big is the Cmote PCB?

The Cmote measures 21.2 × 30.6 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Cmote?

15 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Cmote design files?

From the Person-0/Cmote repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Cmote design in my own project?

The repository has no license, so all rights stay with Person-0. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Cmote 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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