Salvaged VFDs in Nixie-Like Clock

https://fed.brid.gy/r/https://hackaday.com/2026/05/16/salvaged-vfds-in-nixie-like-clock/

Servidor web en un chip de USD 2: cómo funciona

¿Se puede hostear un sitio web en un chip de USD 2? El servidor web en microcontrolador 8 bits con AVR64DD32 y SLIP lo hace realidad. Así funciona en 2026.

https://donweb.news/servidor-web-microcontrolador-8-bits-avr-slip/

#avr #microcontrolador #slip #servidorweb #iot

Been fighting an apparent HDMI HDCP issue for awhile.

Roku Ultra (current version) --> Marantz Cinema 50 --> Epson 5040UB Projector [Monitor 2] and TCL QM8k [Monitor 1]

No issues with E-ARC.

Isolated the issue to the Receiver when both video outputs are enabled, even if they aren't both in-use. Manually setting the output works.

If you search the interwebs, all they ever say is power cycling, cable replacement, and other standard layer 1 things. Receiver-specific guidance talks about upscaling, eliminating video processing, and manually setting HDCP version to 2.3.

Just throwing this out to the void in case others have similar #hometheater #hdcp #avr issues. Will see what Marantz says.

I'm using an #oberon to C transpiler to develop firmware for #avr MCUs.

Unfortunately, my only practical choice of C compiler is #gcc (which is a beast of complex-hard-to-port c++14 code). That said, I'm disabling optimization in my #avr gcc compilations. I'm not using any dynamic memory allocations nor any pre-existing "libraries".

I'm also sticking strictly to Oberon-7 (except I do use underscores in my variable and procedure names -- I hate camel case).

Since Oberon-7 doesn't do variable initializers there should be very little hidden "start up" code (just my low level register access runtime C code). This is about as close as I can get to pure #oberon on an AVR processor without writing an AVR code generating backend for the compiler.

This is one way to reduce complexity and obfuscation.

I'm having lots of fun learning and now writing #oberon programs. I'm pretty much sticking to Oberon-7 specification and am using https://github.com/ericscharff/oberon-compiler as my compiler/transpiler.

So far I've written a runtime for #avr MCUs (specifically the AVR128Dx series of new generation 8 bits) and have written some hacks to improver performance.

It's very minimalist (as a 40+ year user of #forth Oberon has that same feel of 'do the simplest thing possible') and I do have some things I want to fix in the compiler (e..g missing bit shifting operators as defined in the spec), but generally... this is a breath of fresh air.

#6502 asm:
- CLI : Clear Interrupt Disable (enables interrupts)
- SEI : Set Interrupt Disable (disables interrupts)

#AVR asm:
- CLI : Global Interrupt Disable
- SEI : Global Interrupt Enable