ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R1

andrewsays

6 Jun 2019

I like using ATmega/ATtiny microcontrollers for my projects.

I normally use Arduino IDE and Arduino As ISP to program them.

I built a shield for the programming by myself for my convenience, instead of using a breadboard or other products.

This is my “ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R1”.

I’ve been using it for quite long time with no issue but I’ve recently felt that should be enhanced a bit.

I’ve just started working on building “ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R2” with following enhancements.

Support ATmega8535/16/32/164/324/644/1284 DIP40 microcontrollers.
Support ATtiny261/461/861 DIP20N microcontrollers.
Add a power switch.
Adopt a PCB with a standard Arduino UNO shield formfactor to make it look better.
Make the status LEDs - Heartbeat, Error & Programming - brighter.

I’ll post the details about R2 including the circuit diagram, PCB design, BOM & etc. when they are ready.

Top Comments

andrewsays over 5 years ago

Please find my R2 here.
ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R2 - #1
ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R2 - #2
ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R2 - #3
ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R2 - #4
ATmega/ATtiny Microcontroller Programming Shield for Arduino As ISP R2 - #5
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dubbie over 5 years ago in reply to luislabmo

Luis,

This looks very helpful and very simple - simple is good for me. I will have to have a go at this when time permits. At the moment I'm building a patio and playing with some DC motors although not at the same time.

Dubbie
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luislabmo over 5 years ago in reply to dubbie

Hello Dubbie,

There is also a good video about it https://www.youtube.com/watch?v=30rPt802n1k which is inspired from the High-Low Tech group material

Luis
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dubbie over 5 years ago in reply to andrewsays

Andrew,

Thanks for this help. At some point soon I will have a go at this and see if I can make it work for me.

Dubbie
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andrewsays over 5 years ago in reply to dubbie
Please understand that my R1(R2 as well) is not a standalone programmer.
It is just a shield works with Arduino and I'm using an "Arduino as ISP" as the programmer which is the Arduino running a sketch(program) called “ArduinoISP”.
You need to add "http://drazzy.com/package_drazzy.com_index.json" to “Additional Boards Manager URLs” of your Arduino IDE and install “ATTinyCore by Spence Konde” to be able to program ATtiny series microcontrollers with it.

Building a shield to program ATtiny85 is quite simple.
- RESET(PIN1) of Attiny85 -> SS(PIN10) of Arduino.
- GND(PIN4) of Attiny85 -> GND of Arduino.
- MOSI(PIN5) of Attiny85 -> MOSI(PIN11) of Arduino.
- MISO(PIN6) of Attiny85 -> MISO(PIN12) of Arduino.
- SCK(PIN7) of Attiny85 -> SCK(PIN13) or Arduino.
- VCC(PIN8) of Attiny85 -> VCC(5V or 3.3V) of Arduino.
- 0.1uf ceramic capacitor connected between VCC(PIN8) and GND(PIN4) pins of Attiny85, as close to the part as practical.
- 10k resistor between RESET(PIN1) and GND(PIN4) of Attiny85.
- 0.1~10uF capacitor between RESET and GND of Arduino. (I use 10uF.)
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