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Introducing Trellis: Open Source Hardware for Nerves - Gus Workman | ElixirConf EU
Introducing Trellis: Open Source Hardware for Nerves - Gus Workman | ElixirConf EU 2025
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gus
Thanks @AstonJ! This has been an ongoing saga, and it all started with this talk ![]()
Unfortunately, Google has got it a little bit wrong on the chip details. The specs and datasheet for this chip can be found here. The highlights: it has two ARM A7 core @ 1GHz, 256MB DDR3, and a pretty good selection of peripherals for a chip of this size (I2C, UART, SPI, CAN, SDIO, Ethernet, LVDS, RGB888, etc). It’s definitely a fun chip to use with Nerves!
Trellis is a project to make designing custom hardware with Nerves more accessible. The design is open source, created with open source PCB design tools
- Template hardware repo: GitHub - protolux-electronics/trellis_core: A barebones KiCad project for Allwinner T113-based designs · GitHub
- Nerves system: GitHub - nerves-project/nerves_system_trellis · GitHub
After ElixirConf EU last year, @lawik and I cooked up a plan to make a Trellis variant for the Goatmire conference last September in Sweden. We managed to pull it off, and thanks to a sponsor covering all the hardware costs, everyone who attended received a Nerves-powered e-ink name badge:
- Hardware repo: GitHub - protolux-electronics/wisteria_hardware: Hardware files for Wisteria, the Nerves e-ink name badge · GitHub
- Firmware: GitHub - protolux-electronics/name_badge: Software to run on the Nerves name badge, as given out at Goatmire 2025 · GitHub
Now, I’m working on developing the new Nerves Starter Kit, which is a piece of first-party hardware for the Nerves ecosystem. It’s similar to the name badge, but with a larger display, onboard sensors, low power mode and plenty more improvements. Release date later this summer ![]()
The new PCB powering the Nerves Starter Kit
- Recent Nerves Meetup EU recording about the NSK: https://www.youtube.com/watch?v=0igh46GLI6c
- I made a basic 3D simulator if you want see what it feels like: https://nsk.protolux.io
- (last week I spoke more about it at ElixirConf EU, stay tuned for that recording)
Like it said, it’s been an ongoing project, definitely been keeping me busy
I post pretty regularly about it in the Nerves Discord
gus
Sounds like a fun project! I haven’t played with this chip in any high temperature applications yet, but it should hold up just fine, maybe with a conformal coating on the PCB to make it corrosion resistant. Allwinner markets it as an automotive chip, so the temperature requirements mean it can withstand some fairly harsh conditions
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