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by mightyohm
Sat Feb 18, 2017 11:52 pm
Forum: Geiger Counter
Topic: Geiger Counter Problem
Replies: 32
Views: 20143

Re: Geiger Counter Problem

Chad,

You're welcome. Let me know if there is anything else I can do to help.
by mightyohm
Sat Feb 18, 2017 11:24 am
Forum: Geiger Counter
Topic: Getting garbage from FTDI
Replies: 10
Views: 595

Re: Getting garbage from FTDI

What fuse bytes are you using, and are you sure they are actually being set by the Arduino?
by mightyohm
Sat Feb 18, 2017 11:23 am
Forum: Geiger Counter
Topic: Geiger Counter Problem
Replies: 32
Views: 20143

Re: Geiger Counter Problem

chadlawson - did you get your kit working?
by mightyohm
Thu Feb 09, 2017 10:58 pm
Forum: Geiger Counter
Topic: Geiger Counter Problem
Replies: 32
Views: 20143

Re: Geiger Counter Problem

Your kit looks great! A few of your solder joints could use touchup, however I think this is unlikely to solve the problem. Nevertheless it's worth touching them up to be sure. Some pins of the 555 are not fully covered in soldered. Using a clean iron, heat up each pin and add a bit more solder. The...
by mightyohm
Wed Feb 08, 2017 2:09 pm
Forum: Geiger Counter
Topic: Geiger Counter Problem
Replies: 32
Views: 20143

Re: Geiger Counter Problem

Chad, the HV supply is not switching, based on your voltage measurements. Have you checked all solder joints? Is the 555 inserted correctly?

Can you send a photo of the top and bottom of the PCB?
by mightyohm
Sat Jan 21, 2017 2:03 pm
Forum: Bluetooth Handset Hack
Topic: Controlling a microcontroller through bluetooth
Replies: 1
Views: 304

Re: Controlling a microcontroller through bluetooth

If you want to send serial data over the bluetooth link, these modules are very inexpensive and readily available:
http://www.ebay.com/itm/Slave-HC-06-RS2 ... Swf-VWXkcr
by mightyohm
Sat Jan 14, 2017 11:20 am
Forum: HV Rescue Shield
Topic: HV Rescue Shield 2 hardware update
Replies: 5
Views: 539

Re: HV Rescue Shield 2 hardware update

check your spam folder, e-mail notifications should be working (worked for me on your post)!
by mightyohm
Fri Jan 13, 2017 10:18 pm
Forum: HV Rescue Shield
Topic: HV Rescue Shield 2 hardware update
Replies: 5
Views: 539

Re: HV Rescue Shield 2 hardware update

The existing shield uses an LT3464 boost converter to step 5V up to 12V. The MAX662A is nice in that it doesn't require an external inductor, but it's considerably more expensive than the LT3464 + external components. Like you, I'm more of a hardware guy, so I'd probably look for a software develope...
by mightyohm
Thu Jan 12, 2017 12:01 am
Forum: Geiger Counter
Topic: Getting garbage from FTDI
Replies: 10
Views: 595

Re: Getting garbage from FTDI

Did you check the fuse bytes? The default fuse bytes will not work, the clock will run very slow. This may explain the issue with the baud rate.
by mightyohm
Sun Jan 08, 2017 11:56 pm
Forum: Geiger Counter
Topic: Mightyohm Geiger Counter & Raspberry Pi
Replies: 8
Views: 6951

Re: Mightyohm Geiger Counter & Raspberry Pi

Check if pin 1 is shorted to ground, or if you have pin 1 and 3 swapped.

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