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Topic: Burning bootloader onto ATmega chips (Read 535 times) previous topic - next topic

AndyInSurrey

Searching the Internet for an AVR ISP shield for the Arduino to burn bootloaders onto ATmega chips, I see that a lot of them are no longer available.  Why would this be?  Is there a AVR ISP shield available that we can use with the current IDE or does anyone have a PCB design and/or circuit diagram to enable burning bootloaders onto ATmega chips?

AlxDroidDev

#1
Jan 15, 2016, 12:04 pm Last Edit: Jan 15, 2016, 12:06 pm by AlxDroidDev
Adafruit is selling one for $17.50 (https://www.adafruit.com/products/462).

However, it's often easier and a lot cheaper to build your own. There are lots of tutorials on the net, including a link to one in the page above, and basically the BOM is:

- blank shield: $1.80 http://www.dx.com/p/arduino-prototyping-shield-pcb-board-blue-138294
- 28-pin ZIF socket: $2.44 http://www.dx.com/p/diy-28-pin-zif-dip-ic-tester-board-socket-153277
   (there is also a narrow version of the socket above, and it is preferable if you can find it)
- headers
- a few caps: 10uF + 22pF
- 1 crystal 16.0000 MHz
- pieces of 26-32AWG wire
- a couple 3mm LEDs
- the same amount of 220-330 Ohms resistors

The total cost in parts above doesn't exceed US$ 6. Obviously you also need a soldering iron.

I built mine in about 1 hour.

Some of my projects:
Shield for DS1337+, DS1624 and AT24C1024B (RTC, temp & mem): http://forum.arduino.cc/index.php/topic,126197.0.html
CHDK Camera remote shutter (BT, IR, USB): http://forum.arduino.cc/index.php?topic=295377.0

AndyInSurrey

Thank you, I'll get the shield and ZIF socket and build one myself.

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