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Mike Bell

@rebelmike.hachyderm.io.ap.brid.gy

Coder, narrowboater, puzzle hunter, board gamer and occasional geocacher. Currently migrating from mike@rebel-lion.uk 🌉 bridged from ⁂ hachyderm.io/@rebelmike, follow @ap.brid.gy to interact

Posts Replies Media

Mike Bell @rebelmike.hachyderm.io.ap.brid.gy · 15/08/2026

I received my dabao boards. So it’s LED blinking time! This is in Micropython - thanks @matt_trentini for the port.

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Mike Bell @rebelmike.hachyderm.io.ap.brid.gy · 31/07/2026

Another project that was originally on TT09: a run length encoded video player, this time with audio! Here it is playing Bad Apple, audio captured through my phone’s terrible mic. Unfortunately only the first minute fits on the 16MB flash this time as the audio […] [Original post on hachyderm.io]

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Mike Bell @rebelmike.hachyderm.io.ap.brid.gy · 30/07/2026

The image shows the design for the half adder. Transistors are formed where the red polysilicon layer crosses either the orange layer (to form a P MOSFET), or the green layer (to form an N MOSFET). The layers on top of that are wiring.

A screenshot from VLSI magic showing the layout of my half adder. You can count 4 pmos and 5 nmos transistors.

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Mike Bell @rebelmike.hachyderm.io.ap.brid.gy · 28/07/2026

I received the #TinyTapeout sky25a chip, that has the RISC-V peripheral competition versions of my TinyQV SoC on it. There’s lots to play with here, and it’s great to see things are working well. Micropython launches at up to 90MHz, which is faster than […] [Original post on hachyderm.io]

A pink Tiny Tapeout dev board with sky25a with orangey-yellow sky25a breakout board attached. In the Pmod sockets are gamepad, QSPI and VGA Pmods.

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Mike Bell @rebelmike.hachyderm.io.ap.brid.gy · 30/06/2026

I got a first set of TinyQV chips bonded to boards back from Wafer Space run 1! Time to see if it works 🤞

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Mike Bell @rebelmike.hachyderm.io.ap.brid.gy · 12/05/2026

I received some silicon from wafer space run 1! These are just for display purposes - we’re still working on getting a board together to allow some to be bonded. But they are a version of my TinyQV SoC in a “quarter size” wafer space slot.

Some small, bare silicon dies in a small portion of a reel, with a 20 euro cent coin below for scale.

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