Mastodawn

I know I am 10 years late, but I find it wild that you can install a software on a 16,5 MHz Microcontroller, that absolutely does not have USB, and then you have an USB capable device.

#avr #attiny #vusb #micronucleus

Mark Struberg Jan 1

Found another area where the #Microchip #Attiny #AVR uCs have an edge over most of their #ARM counterparts: in rough conditions where you get lots of ripple on yout VDD.

While the ARMs have an internal voltage reference (most times 1.2V), they cannot use this vref as reference for their ADC. The ADC always uses VDDA, which is almost always internally tied to VDD.

In comparison the ATtiny402 can select VDD, 4.3V, 2.5V, 1.5V, 1.1V and 0.55V as vref.

Ofc the DMA mode on the ARMs is really nice

Rommudoh Dec 13

I designed another PCB... Small preview without revealing what it will be. It'll arrive mid January, though.
They will be manufactured by @aislerhq again, using the 20% December discount for using their #KiCad plugin.
It'll have the option to use an AVR DA compatible #microcontroller or a #tinyAVR one - I added options for both that I have in stock (AVR32DA32 and ATtiny814). Since it won't use many pins, I could have used smaller variants, too.
#AVR #AVRDA #ATtiny #pcbdesign #kicad #aisler #pcbdesign

Mark Struberg Dec 2

One of the areas where #Atmel #Attiny really shine is the power consumption in stop mode. When everything is off and the mcu is waiting for an external interrupt to wake up again.
On the ATtiny402 I constantly get around 135nA.
While the STM32 and other ARM consume less than the AVRs under steam, they only can get down to around 4..5µA in stop mode.

That doesn't sound much, but it means 30 times more battery life. With a LIR2032 this means 1 year vs 30 years standby.

0mega Nov 28

Falls ihr auch mal einen billigen #USBTinyISP verwendet, um #ATTiny 's zu programmieren, hilft euch evtl. diese "quick and dirty" udev-Regel weiter:

/etc/udev/rules.d/50-usb-isp.rules

SUBSYSTEM=="usb", ATTR{idVendor}=="1781", ATTR{idProduct}=="0c9f", MODE="0666"

Somē Oct 8, 2025

Trying to simulate a 1-bit saw wave with 8-bit PWM on the attiny85. A first glance of the wave form looks OK. Take a zoom and there's some strange high-frequency artifacts.

#atmega #attiny #attiny85 #dsp #embedded #audio #maker

Tod Kurt (todbot)Sep 25, 2025

Finishing up the first ever electronic badge for our Sketching In Hardware conference (the 18th!)
They just need battery holders soldered & programming. A simple but fun design. Designed w/ @Leeborg #badgelife #attiny #avr #sketching2025 #sketchinginhardware