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Alphabets V2 ATtiny1624 millable ring module

TheBeachLab·alphabets·V2/Hardware/Final/electronics/attiny1624-ring/attiny1624-ring.kicad_pcb

Alphabets V2 ATtiny1624 millable ring module layout, top view — open source AVR/Arduino board by TheBeachLab
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About the Alphabets V2 ATtiny1624 millable ring module

Alphabets V2 ATtiny1624 millable ring module is an open source AVR/Arduino PCB design by TheBeachLab, published on GitHub under the MIT license. It is a 2-layer board measuring 50 × 50 mm, with 26 components from 26 distinct parts.

Its main chip is the ATtiny1624-SSU, from the AVR/Arduino family. By type, the board carries 16 jumpers, 4 connectors, 3 capacitors, 2 resistors and 1 IC.

It belongs with the displays & leds and power & battery designs in this gallery.

From the project

Open Source Mechanical Split Flap Display, AKA Solari display

This directory contains the editable KiCad 10 design for one Alphabets V2 split-flap module. The board keeps the existing 2x3 synchronous-ring connector, drives an external four-input stepper board, reads a powered HOME sensor, and uses the ATtiny1624's one-wire UPDI programming interface.

The hardware assignment follows Microchip's ATtiny1624/1626/1627 data sheet. Microchip documents PA0 as UPDI/RESET and PA1, PA2, and PA3 as SPI0 MOSI, MISO, and SCK respectively. The standard programming connection is the 2x3, 2.54 mm UPDI header described in Microchip's UPDI connection guide.

Main components on the Alphabets V2 ATtiny1624 millable ring module

ATtiny1624-SSU

Alphabets V2 ATtiny1624 millable ring module bill of materials (BOM)

26 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATtiny1624-SSU
U1
1
CHAIN_RING
J1
1
STEPPER_DRIVER_IN
J3
1
HOME_SENSOR
J4
1
UPDI_2X3
J5
1
0R CHAIN power bridge 1206
JP1
1
0R UPDI power bridge 1206
JP2
1
0R HOME power bridge 1206
JP3
1
0R MCU power bridge 1206
JP4
1
INSULATED CLOCK LINK 22.3mm
JP5
1
0R LATCH bridge 1206
JP6
1
INSULATED DATA_IN LINK 25.6mm
JP7
1
INSULATED DATA_OUT LINK 23.5mm
JP8
1
0R MCU ground bridge 1206
JP9
1
INSULATED UPDI LINK 16.6mm
JP10
1
INSULATED GND LINK 29.7mm
JP11
1
INSULATED MOTOR3 LINK 23.5mm
JP12
1
INSULATED MCU POWER LINK 17.7mm
JP13
1
INSULATED MOTOR1 LINK 30.3mm
JP14
1
INSULATED MOTOR2 LINK 24.5mm
JP15
Show 6 more
QtyPartRefs
1
INSULATED MAIN POWER LINK 27.0mm
JP16
1
100n MCU 1206
C1
1
1n HF 1206
C2
1
10u BULK 1206
C3
1
10k UPDI pull-up 1206
R1
1
10k HOME pull-up 1206
R2

Alphabets V2 ATtiny1624 millable ring module design files

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

Alphabets V2 ATtiny1624 millable ring module: common questions

What microcontroller does the Alphabets V2 ATtiny1624 millable ring module use?

The Alphabets V2 ATtiny1624 millable ring module is built around the ATtiny1624-SSU, from the AVR/Arduino family.

How big is the Alphabets V2 ATtiny1624 millable ring module?

The Alphabets V2 ATtiny1624 millable ring module measures 50 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Alphabets V2 ATtiny1624 millable ring module?

26 components, from 26 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 Alphabets V2 ATtiny1624 millable ring module design files?

From the TheBeachLab/alphabets 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 Alphabets V2 ATtiny1624 millable ring module design in my own project?

Yes, under the terms of its MIT license, which TheBeachLab chose for the repository.

Can I test firmware for the Alphabets V2 ATtiny1624 millable ring module 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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