Avr High Voltage Parallel Fuse Repair Programmer

This item requires some assembly and some soldering. The sockets are included but not installed. OR You can buy the PCB and firmware and build one yourself from here: Atmega Fuse Programmer PCB

What is it?

This device is an AVR HIGH VOLTAGE PARALLEL programmer that is designed to program all fuses, regardless of the current state of the fuses. If you mistakenly programmed the RSTDISBL fuse, OR disabled the SPIEN fuse, or programmed the wrong values in the CKSEL fuses, NO PROBLEM! Simply insert any AVR from device list below and connect power. Within one second, fuses will be restored to factory settings. The LED'S will reveal the results.

The Green LED indicates programming success, the Yellow LED indicates programming error. It's that easy. No computer required!

Why did you make it?

It's easy to do something wrong when you are programming your atmega or attiny fuses. Sometimes the fuses just don't get programmed correctly, no matter how careful you are.

In 2008 I was writing code and really making progress. I was on a roll and very excited to try my new code when programming the device something went wrong. I just bricked my last device!!

I was sick and tired of throwing these devices in the garbage and frustrated of having to wait sometimes weeks for a new order. I decided to design a standalone programmer to quickly fix the device without having to fidget with USB drivers, cables and slow bloated computer programs.

I designed the board and wrote the code for the very first version. It wasn't very long until other sellers had copied the programmer. Even when I released an update, soon afterwards the copies were updated with the same feature.

What makes it special?

This is the easiest and most convenient tool you will ever use!

Once the Atmega or Attiny device is restored, you can program the AVR using your favorite ISP programmer and software.

NEVER WORRY ABOUT PROGRAMMING YOUR AVR AGAIN!

Another time saving feature of this programmer is the ability to preserve the flash and eeprom contents while restoring the fuses so you do not have to reprogram the code in your device. To do this, simply install jumper J1. This will skip the erase command and preserve the device memory.

If the lock bits have been programmed, the device must be erased before the fuse restore operation will be successful. In order to accomplish this, J1 jumper must not be installed, therefore the flash and eeprom contents will be erased when the fuse restore operation is being performed.

Some Important Notes regarding the use of this Programmer:

YOU MUST USE A POWER SUPPLY THAT EXCEEDS 14.5 VDC with positive center (not included) to ensure reliability in programming. It is a good idea to measure the output your DC power supply with a voltmeter to ensure correct voltage and polarity. I am trying to keep the cost and shipping weight down, therefore the power supply is not included with this item.

Instructions will be included with your purchase. You will receive a link to download the user manual. Please check your email messages on Tindie for instructions.
I recommend you read the manual before using the programmer.

If your device is not listed in the table below you can still repair it using terminal mode, as long as your device uses the high voltage parallel programming method. Terminal mode requires a connection from the programmer to your USBtoTTL converter (not included) and uses any basic terminal program @9600 bps. (please read the user guide for connection instructions)

Supported Devices for the Atmega Fuse Repair Programmer

The following devices are supported, however they must be wired to any socket.

ATtiny43U ATtiny87 ATtiny88 ATtiny167 ATmega328PB**

**** (All SMD pins must be wired directly to the socket)

ONCE PAYMENT HAS BEEN RECEIVED, THE ITEM SHIPS IMMEDIATELY THE SAME DAY IF THE ORDER IS PLACED BEFORE 2 PM EASTERN TIME (orders placed after 2 PM eastern time will be shipped the next business day) There is no shipping available in Canada on Saturday and Sunday.

Rest assured if you buy this item you will receive support for any problem devices you can't program. I am the originator of this item, not a reseller so you will always receive an honest, quick & direct response to any emails.

When buying a cheap item from China and you ask the seller a simple question, do you quickly receive a straight answer? Probably not. Most of the time the seller doesn't even know what he/she is even selling and cannot offer any type of support (even if there was no language barrier).

For any questions, just send me an email message here or look for the email address in the user guide you downloaded. I usually respond immediately and I will do my best to help you successfully program your device.