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Reburn Arduino bootloader in a Uno?
My Favorite Surplus joint Skycraft had a bunch o Arduino Unos so I got one. The one I got at RadimoShack just works great. The one from Skycraft doesn't. I have the latest Arduino...
Tuesday, 23 October 2012 - 02:43
4 wire touch screen read algo?
I got a 2.8" 240x320 tft shield for my arduino uno. Trying to read the touchscreen in c. Can't grok the c++ ladayada example. There are 4 wires. To read the x axis, I set the y...
Wednesday, 10 October 2012 - 02:00
SeeedStudio 2.8" 240x320 shield
I ordered one of these dudes and I'm timing screenfills and getting 31K pix per sec on a 16MHz Uno with their init and my graphics stuff. I've seen several of these controllers...
Saturday, 22 September 2012 - 00:49
Smallify lense?
Trying to simulate a 2.5" square lcd. Lets say I have a nice 5" TFT with white LED BL. 300 nits or so. Whats it take to mount the 5" lcd behind the 2.5" screen, which is sort of a...
Friday, 21 September 2012 - 02:57
Ever seen a 5" diag 320x240 display?
There are some Mission Computer Displays that have 14 rows of 25 chars of green dots on a black background. I suspect the simulator guys use an RGB LCD and just draw in green with...
Sunday, 9 September 2012 - 20:46
while loop never exits?
(0648) //---------------------- (0649) void delaytest(void){ (0650) //test timer0 delay (0651) (0652) cprintf("start "); _delaytest: 0040E ED0F LDI R16,0xDF...
Wednesday, 8 August 2012 - 01:59
2 into 1 Serial multiplexer algorithm?
I think I need to 'multiplex' a couple of 19200 bps rs422 gizmos into one rs422 port, and fan out the port tx to both devices. That part seems easy, just send any char from the...
Sunday, 22 July 2012 - 17:52
AT91SAM7S-EK?
Any way to create a program for this eval kit using asf? We have to request a package creation? OK, its been a while, no nibbles. Let me rephrase... is this eval kit still an...
Sunday, 15 July 2012 - 01:25
High power dc to dc stepup with a transformer?
Lets say I have a 60hz 120v to 12v transformer, lets say 10A on the 12v side. 120W can 'flow thru the core'. If I drive the secondary with a 120Hz 12v hbridge, can I get 240W out...
Sunday, 15 July 2012 - 00:24
xbee rx and tx inputs inverted?
Hello rf dudes. I have an arduino uno and an xbee shield. There is a switch on the shield to put the xbee rx and tx to pd0 and pd1 to talk to the avr uart, or to pd2 and pd3 so...
Wednesday, 4 July 2012 - 17:27
Atmel Tech On Tour in Orlando
Just spent the day at a fancy hotel near the Orlando airport getting some handson with AS6 and ASF and a SAM416 xplained board. I found out SAM means Smart Arm Module. They had a...
Tuesday, 19 June 2012 - 21:01
Can you enable and disable rxen and rxie at the same time?
I am sending some stuff out the tx and I want to turn off the rx enable and the rx int so I dont receive what I'm sending, but it isn't acting right. It sort of acts like the...
Friday, 15 June 2012 - 19:46

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