Search found 952 matches

by mightyohm
Sun Oct 22, 2017 11:02 am
Forum: HV Rescue Shield
Topic: Reviving those pesky (and cheap) ATMEGA328p-PU from Ebay
Replies: 3
Views: 1116

Re: Reviving those pesky (and cheap) ATMEGA328p-PU from Ebay

Thanks for posting the details!

Cheers!
by mightyohm
Mon Sep 25, 2017 5:42 pm
Forum: HV Rescue Shield
Topic: Reviving those pesky (and cheap) ATMEGA328p-PU from Ebay
Replies: 3
Views: 1116

Re: Reviving those pesky (and cheap) ATMEGA328p-PU from Ebay

Andrew,

Thanks for the feedback. I'm glad you got your chips working.
What was the problem with the fuses that you had to use the Rescue Shield to fix?
by mightyohm
Mon Aug 07, 2017 11:51 am
Forum: Geiger Counter
Topic: Strange noise with Ludlum 44-9 and Uranyl Nitrate
Replies: 2
Views: 1313

Re: Strange noise with Ludlum 44-9 and Uranyl Nitrate

I'm not familiar with that geiger counter, but it does sound like there is some electrical noise inside the device that is making the sound, probably related to the high voltage supply.
by mightyohm
Sat May 20, 2017 9:41 pm
Forum: HV Rescue Shield
Topic: cannot rescue two 328P-PU chips
Replies: 6
Views: 2503

Re: cannot rescue two 328P-PU chips

It seems that the chips are indeed bad. If you'd like, I can double check them on my setup - send me a PM and I can provide a return shipping address.
by mightyohm
Tue May 16, 2017 5:14 pm
Forum: Wifi Radio Project / Hacking the Asus WL-520gU
Topic: Internet radio on the hg 556a router
Replies: 1
Views: 797

Re: Internet radio on the hg 556a router

Cool, thanks for sharing!
by mightyohm
Tue May 16, 2017 5:12 pm
Forum: HV Rescue Shield
Topic: cannot rescue two 328P-PU chips
Replies: 6
Views: 2503

Re: cannot rescue two 328P-PU chips

Did you change the MEGA variable in the sketch to '1' and recompile/reupload to your Arduino Mega?
by mightyohm
Fri May 12, 2017 8:42 pm
Forum: HV Rescue Shield
Topic: Looking for feedback...
Replies: 24
Views: 34103

Re: Looking for feedback...

If you use the Rescue Shield with an Arduino Mega, make sure you edit this line in the sketch and change the 0 to a 1, then recompile and upload to the Arduino. Make sure there is no chip in the socket when you upload or run the sketch! // User defined settings #define MEGA 0 // Set this to 1 if you...
by mightyohm
Thu May 11, 2017 9:10 pm
Forum: HV Rescue Shield
Topic: cannot rescue two 328P-PU chips
Replies: 6
Views: 2503

Re: cannot rescue two 328P-PU chips

Are you able to reset the fuses with the rescue shield? What happens when you try to set the default values (0x62 0xDF)?

I've seen chips like your chip 2 before - once the device signature is corrupted the part is usually not recoverable.
by mightyohm
Mon May 01, 2017 9:34 pm
Forum: General Discussion
Topic: Raising the frequency of a quartz crystal
Replies: 2
Views: 1198

Re: Raising the frequency of a quartz crystal

Berj - That is a great article. Thanks for sharing the details of retuning crystals. I never realized that the crystal was just clamped in place in the old style housings!
by mightyohm
Mon May 01, 2017 9:29 pm
Forum: Geiger Counter
Topic: Geiger Counter Problem
Replies: 36
Views: 27888

Re: Geiger Counter Problem

Chad - thanks for the kind words in your video! I posted a link to it on the front page of the blog.

http://mightyohm.com/blog/2017/04/verbo ... radiation/

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