Bit-Banging the USB-PD Protocol
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For one-off projects, adding a few integrated circuits to a PCB is not too big of a deal. The price of transistors is extremely low thanks to Moore and his …read more Continue reading Bit-Banging the USB-PD Protocol
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For one-off projects, adding a few integrated circuits to a PCB is not too big of a deal. The price of transistors is extremely low thanks to Moore and his …read more Continue reading Bit-Banging the USB-PD Protocol
For those of us who lived through the early 8-bit computing revolution — the tail end, in our case — it’s hard to believe that there’s a second wave of …read more Continue reading Happy Birthday to Dad, Retrocomputer Style
Anyone looking for components for electronics projects, especially robotics, microcontrollers, and IoT devices, has likely heard of Waveshare. They are additionally well-known suppliers of low-cost displays with a wide range …read more Continue reading Low-Cost Display Saved By RP2040
These days, even really cheap microcontroller boards have options that will give you ethernet or wifi access. But what if you have an original Raspberry Pi Pico board and you …read more Continue reading Bit-Banging Bidirectional Ethernet on a Pi Pico
[Scott Harden] wrote in to tell us of some success he’s having using the FT232 chip to speak SPI directly from his laptop to a AD98850 digital signal generator. At least that was his destination. But as so often in life, more than half the fun was getting there, finding some still-unsolved silicon bugs, and (after simply swapping chips for one that works) potting it with hot glue, putting it in a nice box, and putting it up on the shelf.
In principle, the FTDI FT232 series of chips has a bit-bang mode that allows you to control the individual …read more
Continue reading Silicon Bugs In The FTDI FT232R, And A Tidy RF VCO Project