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openwch/ch32v003

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CH32V003 is an ultra-cheap RISC-V MCU with 2KB SRAM, 16KB flash, and up to 18 GPIOs that sells for under $0.10

3 mentions on Hacker News by 3 people: 0 stories, 3 comments · first 2023-08-04 · latest 2026-08-17

Mentions per year 3 mentions · busiest year 2023 (2)
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  1. Here's the CH32v003, https://github.com/openwch/ch32v003 These are pretty low end and are fairly available at low cost. Here's a youtube of someone talking through some of the the CH32 boards, https://www.youtube.com/watch?v=Kss6WQvJbRs He…
    comment by kreelman · 2026-08-17 · in A third world engineer responds to “RISC-V: They should have known better”
  2. …$ 0.70 --- not so bad. But if you want super cheap, 'standard'-type uC chip, look at the $ 0.10 https://github.com/openwch/ch32v003/tree/main
    comment by GeorgeTirebiter · 2023-10-23 · in Raspberry Pi 5: available now
  3. There are some MCUs that use RV32E also - the CH32V003 [0] comes to mind. [0] - https://github.com/openwch/ch32v003
    comment by bpye · 2023-08-04 · in A Single-Cycle 64-Bit RISC-V Register File