Search found 1022 matches

by mightyohm
Mon Oct 26, 2020 3:04 pm
Forum: Geiger Counter
Topic: How to input the source code to Attiny2313?
Replies: 1
Views: 1096

Re: How to input the source code to Attiny2313?

Can you explain what you are trying to do?
by mightyohm
Mon Oct 26, 2020 2:54 pm
Forum: Geiger Counter
Topic: Mightyohm Geiger Counter & Raspberry Pi
Replies: 11
Views: 26278

Re: Mightyohm Geiger Counter & Raspberry Pi

I don't think I'd recommend powering the kit from a GPIO. While the average current might be a few mA the peak current is higher.
by mightyohm
Mon Oct 26, 2020 2:51 pm
Forum: Geiger Counter
Topic: Serial Pinout for J7
Replies: 1
Views: 702

Re: Serial Pinout for J7

The pinout is compatible with the FTDI USB-serial cable. You'll notice the in the attached image TX/RX are swapped from the pinout listed below - this is because on the FTDI cable, TX and RX are defined with respect to the host, while on the kit the pins are defined with respect to the microcontroll...
by mightyohm
Sat Sep 05, 2020 9:02 am
Forum: Geiger Counter
Topic: Web app interface for MightyOhm Geiger Counter
Replies: 2
Views: 1270

Re: Web app interface for MightyOhm Geiger Counter

This is really cool, thanks for sharing!
by mightyohm
Sat Sep 05, 2020 9:02 am
Forum: Geiger Counter
Topic: Expected battery life?
Replies: 2
Views: 1316

Re: Expected battery life?

That's a great question. I haven't characterized the battery life but it should be on the order of a few days. I'll add this to my to-do list and post an update when I have more information.
by mightyohm
Sat Sep 05, 2020 9:00 am
Forum: Geiger Counter
Topic: Geiger Counter working but not a peep on the serial port
Replies: 5
Views: 2985

Re: Geiger Counter working but not a peep on the serial port

Earl,

Sorry for the late reply.
Glad you got it sorted out. Enjoy your kit!
by mightyohm
Mon Jul 20, 2020 4:55 pm
Forum: Geiger Counter
Topic: Geiger Counter working but not a peep on the serial port
Replies: 5
Views: 2985

Re: Geiger Counter working but not a peep on the serial port

If the ceramic resonator is off-frequency or the fuse bytes are set incorrectly, the kit may still appear to work fine, though the pitch of the beeper will be wrong and the serial port will not work (the baud rate will be wrong). How did you flash the MCU? If you used the Makefile included with the ...
by mightyohm
Mon Jul 20, 2020 1:33 pm
Forum: Geiger Counter
Topic: Geiger Counter working but not a peep on the serial port
Replies: 5
Views: 2985

Re: Geiger Counter working but not a peep on the serial port

You mentioned in email that you flashed the MCU yourself. If the fuse bytes are not set, the baud rate might be way off and that will cause problems. Other ideas - low batteries may cause problems, try fresh alkaline AA's. Solder joints - sounds like you checked this. Serial cable connected backward...
by mightyohm
Mon Jul 20, 2020 9:49 am
Forum: Geiger Counter
Topic: Data Logging Help
Replies: 5
Views: 2613

Re: Data Logging Help

What USB to serial adapter are you using? Can you describe your setup?
by mightyohm
Tue Jul 14, 2020 11:37 am
Forum: Geiger Counter
Topic: Data Logging Help
Replies: 5
Views: 2613

Re: Data Logging Help

Does it help if you change the display mode to ASCII?