Lmst

ATMEGA328P-AU Embedded System for Atemel IC Distributor

Atmega328p specification:IC MCU 8BIT 32KB FLASH 32TQFP. #ATMEGA328 #ATMEGA328P #ATMEGA328PAU #atmelchip #icdistributor

https://www.cmxelcs.com/product/atmega328p-au-control-ic-distributor/

Anyone know enough about the ATmega328 to know if the UART can cope with something else disabling interrupts for ~2mS...?

That sounds like quite a lot to me.

This is for handling MIDI, so I think at 31250 that would be enough for up to two complete 3-byte messages to have gone past...

Am about to pile into the datasheet, but the UART was always a bit of "mystery magic that just worked" for me...

#MakerHelp #ATMega328 #MIDI #UART

An Arduino Nano Clone in a DIP-Sized Footprint https://hackaday.com/2024/06/22/an-arduino-nano-clone-in-a-dip-sized-footprint/ #ArduinoHacks #ATtiny3217 #atmega328 #arduino #nano #dip #smd

A Super-Simple Standalone WSPR Beacon https://hackaday.com/2024/06/14/a-super-simple-standalone-wspr-beacon/ #amateurradio #transmitter #radiohacks #weaksignal #atmega328 #digital #beacon #si5351 #wspr #gps #ham

Контроллер управления аттенюаторами Agilent/Keysight 8494H и 8496H

Приветствуем! Так получилось, что нам достались два аттенюатора Agilent 8494H и 8496H. Они долго лежали без дела, поскольку отсутствовал контроллер управления. Конечно, четыре простых переключателя справились бы с этой задачей, но хотелось реализации с дисплеем показывающий текущее значение затухания и программное управление. Проект сделан в EasyEDA и Atmel Studio.

https://habr.com/ru/articles/812755/

#Atmel #Atmega328 #C #3dпечать #Agilent #keysight #8494H #8496H #Attenuator

Also cleaned out my container of Micro-Controllers, these are controllers, that I simply don't use any more.
I pretty much spend most of my time working with #ESP32 any more - and these just seem like they are taking up room I could be using for more #ESP32 boards LOL.

I'm not getting rid of them, just putting them in a different box, that doesn't stay near the work bench.

#Arduino #Uno #Nano #Atmega328 #Photon #SparkCore #M0 #BluePill

stack of micro-controllers that I no longer use

New Maker project - 555BusDuino for education
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Arduino Bus System - Breadboard compatible
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#Arduino #555busduino #atmega328 #uno #electronics #education #workshop #maker #diy

New Maker project - 555BusDuino for education
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Stackable Arduino Bus System
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#Arduino #555busduino #atmega328 #uno #electronics #education #workshop #maker #diy

Should this be considered #retrocomputing?

#arduino #duemilanove #madeinitaly #atmel #atmega #atmega328

Analyzing power consumption with Power Profiler

LoRa Sensor Board with ATmega328 and RFM95W

@lededitpro
#sensor #node #lora #power #powerprofiler #prototype #atmega #microchip #atmega328 #arduino #electronics #workshop #maker #diy #lededitpro

So I need to reach out to people who've done odd things before like #CirucitBoardDesign...
I'd like to build a #custom #ATMega328 board with specific connections and a display built on to the board which would allow me to design a case around it that would sit inside a computer case such that the display would be visible through the side (or even if it were front-mounted in a 5 1/4" drive slot...).

FWIW, I'm running #Linux and only Linux at home for my desktop machines, so any software suggested for the design would need to be compatible. I do have #KiCAD installed, but have never used it before.

I think I remember @emily having done some of this kind of thing before, but if I'm wrong, or if anyone else wants to chime in with advice, I'd appreciate it.

Thanks in advance.

Building RFBoard

RFBoard - Arduino Uno with onboard 433 MHz transceiver RFM12B
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@arduino
#rfboard #rfm12b #433mhz #uno #atmega #microchip #atmega328 #arduino #electronics #workshop #maker #diy

Make your own Arduino UNO
Our swiss maker community created an own Arduino Board a couple years ago.
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Helvetino
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https://playground.boxtec.ch/doku.php/products/helvetino
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@arduino
#pcb #makearduino #uno #atmega #microchip #atmega328 #arduino #electronics #workshop #maker #diy

I have my own Make Arduino Kit
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Make 555Duino with ATmega328
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@arduino
#pcb #makearduino #uno #atmega #microchip #atmega328 #arduino #electronics #workshop #maker #diy

Retro Serial Terminal Uses Modern Chips to Get CP/M Machine Talking

The hobbyists of the early days of the home computer era worked wonders with the comparatively primitive chips of the day, and what couldn't be accomplished with a Z80 or a 6502 was often relegated to complex designs based on logic chips and discrete components. One wonders what these hackers could have accomplished with the modern components we take for granted.

Perhaps it would be something like this minimal serial terminal for the current crop of homebrew retrocomputers. The board is by [Augusto Baffa] and is used in his Baffa-2 homebrew microcomputer, an RC2014-esque Z80 machine that runs CP/M. This terminal board is one of many peripheral boards that plug into the Baffa-2's backplane, but it's one of the few that seems to have taken the shortcut of using modern microcontrollers to get its job done. The board sports a pair of ATmega328s; one handles serial communication with the Baffa-2 backplane, while the other takes care of running the VGA interface. The card also has a PS/2 keyboard interface, and supports VT-100 ANSI escapes. The video below shows it in action with a 17″ LCD monitor in the old 4:3 aspect ratio.

We like the way this terminal card gets the job done simply and easily, and we really like the look of the Baffa-2 itself. We also spied an IMSAI 8080 and an Altair 8800 in the background of the video. We'd love to know more about those.

#retrocomputing #atmega328 #cpm #rc2014 #uart #vga #z80

@claudiom @kelbot @nytpu @Maya @snowdusk__ @publius @johnm @robert588 @ffuentes @xmanmonk @smj @peron My two new/old #programming #brainstorming #trainer #toys! #texasinstruments #ti95 #procalc with 8k #ram #cartridge and #atmega328 powered #nanokenbak #kenbak1 showing #binary #time via #rtc. Time to cut teeth on #binary #opcodes and #keystrokes.

Calculate Like It’s 1989 With This HP15C Emulator

Back in the day, your choice of calculator said a lot about your chops, and nothing made a stronger statement than the legendary Hewlett-Packard Voyager series of programmable calculators. From the landscape layout to the cryptic keycaps to the Reverse Polish Notation, everything about these calculators spoke to a seriousness of purpose.

Sadly, these calculators are hard to come by at any price these days. So if you covet their unique look and feel, your best bet might be to do like [alxgarza] and build your own Voyager-series emulator. This particular build emulates the HP15C and runs on an ATMega328. Purists may object to the 192×64 LCD matrix display rather than the ten-digit seven-segment display of the original, but we don't mind the update at all. The PCB that the emulator is built on is just about the right size, and the keyboard is built up from discrete switches that are as satisfyingly clicky as the originals. We also appreciate the use of nothing but through-hole components -- it seems suitably retro. The video below shows that the calculator is perfectly usable without a case; a 3D-printed case is available, though, as is an overlay that replicates the keypad of the original.

We've seen emulators for other classic calculators of yore, including Sinclair, Texas Instruments, and even other HP lines. But this one has a really nice design that gets us going.

The HackadayPrize2021 is Sponsored by:

#thehackadayprize #15c #2021hackadayprize #atmega328 #calculator #emulator #hewlettpackard #programmable #scientific

Accurate Digital Clock Keeps Ticking with FPGA

Even the most punctual among us are content to synchronize their clocks to external time sources like navigation satellite constellations, network time servers, frequency-controlled AC mains, or signals broadcast by radio stations such as WWV, CHU, and DFC77 -- but not [zaphod]. After building a couple of more traditional clocks over the years, he set his sights on making a completely isolated digital clock that doesn't rely on external synchronization (well, except to initialize the time at first power-up).

The accuracy goal he set for himself was that of a Casio F-91W wristwatch, which is specified to maintain +/- 30 seconds per month (about 12 ppm). At the heart of the design is an oven-controlled crystal oscillator whose stability is in the single-digits parts-per-billion.

The counter chain that accumulates the time is implemented in an FPGA -- admittedly overkill, but [zaphod] wanted to learn FPGA programming for this project as well. An ATmega328 drives the display and does other bookkeeping tasks. The whole design is partitioned into three PCBs which fit inside a custom 3D-printed case.

[zaphod] does a thorough job documenting his build, including the bugs and failures along the way. We like the honest summary he wrote at the project's conclusion, noting things that could be improved or should have been done differently. Be sure to check out the GitHub repository, where all the source code and PCB design files are posted. How accurate is your wristwatch, if you even wear one anymore?

#clockhacks #atmega328 #digitalclock #fpga #ovencontrolledcrystaloscillator