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ATTiny Fuse Restore Programmer

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What is it?

This device is an AVR HIGH VOLTAGE SERIAL 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 ATtiny 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 ATtiny fuses. Sometimes the fuses just don't get programmed correctly, no matter how careful you are. I wanted to build a unit that was easy to use without using a computer, software, usb drivers, etc...

In 2008, 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?

Once the ATtiny device is restored, you can reprogram 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 devices' 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 in your email address that is registered to your paypal account. I recommend you read the manual before using the programmer.

### Supported Devices for ATTiny Fuse Restore Programmer

**The following devices are supported, however they must be directly to socket #2. ATtiny441, ATtiny841

This is the easiest and most convenient tool you will ever use! If you are purchasing this item, please check your email messages on Tindie for instructions.

ONCE PAYMENT HAS BEEN RECEIVED, ITEM SHIPS IMMEDIATELY THE SAME DAY IF THE ORDER IS PLACED BEFORE 2PM EASTERN TIME (or latest, Next business day) There is no postal service in Canada on weekends.

Rest assured if you buy this item you will receive support for any problem ATtiny 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 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.