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IR Leds - all broken OR how to test them
So, I recently got back to an old project and started messing around with IR. For IR, one needs leds. So I dug up my few year old bag of them, static bag, but sadly all of them...
Sunday, 2 August 2015 - 19:34
Generating a 38KHz carrier wave for IR
This is more of a generic question then AVR specific, hence the post here. I want to generate a 38KHz carrier wave to transmit via IR, real basic, but I haven't done this before...
Monday, 20 July 2015 - 11:25
TSOP1738 - Test Circuit, led is perpetually lit
I've recently returned to this hobby, well hobby for me, and I am taking another crack at learning IR. All the way from the basics, I've forgotten quite a bit it seems. Making a...
Saturday, 18 July 2015 - 18:14
Chinese 433Mhz Temperature Sensor protocol
This is probably a longshot, but maybe someone knows these.   I have recently acquired a set of XT200 temperature sensors, they are cheap, Chinese products and lack any kind...
Monday, 12 January 2015 - 17:25
Connecting a 7Segment with NPN
I've got a set of 4 Common Cathode 7 Segments. I am going to be driving them from an AtMega48 via an 4511. Now, I've been reading up on Google and such, and it is suggested to use...
Wednesday, 17 October 2012 - 09:19
ADC - Free Running mode
Hi, I a mucking about with ADC on a AtMega48. I seem to have it halfway working, but I cannot for the life of me iniatie free running mode. I think. I've read an excellent...
Tuesday, 16 October 2012 - 12:04
ADC - Keypad resistormatrix
Hi all. I am trying to build a keypad using the AD converter on a ATMega48. I've been doing some research on google and found out that is best achieved using a resistor matrix. I...
Monday, 24 September 2012 - 07:44
Decoupler Caps - AtTiny24/44
I am currently soldering a few AtTiny based boards, when I realised I didn't know something. The required size of the decoupling caps and wether those should be ceramic or...
Tuesday, 24 April 2012 - 21:43
What is this cable, or more precisly connector called
A really basic question, but I fear my lack of English is confounding me. I've searched my parts store (Farnell) high and low for this, but I can't seem to hit on this connector...
Monday, 16 April 2012 - 17:10
MySMARTUSB, serviceable?
As some of you may know, AVR is a hobby for me to combine with theater special effects. As such I often lugging around a notebook to the stage to update the latest toys with the...
Wednesday, 11 April 2012 - 23:28
Help identifying a resistor, probably
My old man just send me a picture with the question if I could identify a resistor. But, alas I can not, it doesn't look like the color bands I know, nor can the internet help me...
Friday, 6 April 2012 - 15:34
Capacitator on reset
I am desiging a small experiment board for hobby use. I am taking my time and searching around. Mostly, I am striving to understand the what and why. Hence an earlier question by...
Wednesday, 8 February 2012 - 15:04

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