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I2C pull up resistor location - Split from Weird signals on SDA/SCL pins for I2C
jgmdesign wrote:EDIT:  The resistors must also be at the last device on your bus.  Not at the microcontroller. Hi Jim, Is this really really important?  I have been...
Thursday, 4 April 2019 - 16:23
I discovered the ATmega1284P's use JTAG for debugging instead of debugWire, although the data sheet mentions debugWire.  The JTAG connector on my ICE is 0.050 pin spacing, so...
Saturday, 2 March 2019 - 23:18
115200 baud UART
I have been having trouble talking to 16MHz mega's at 115200 BAUD.  Talking to a PuTTY window through an FTDI USB-serial chip gives me garbage on the screen, if anything at...
Monday, 11 February 2019 - 01:51
mobile phone to AVR
This question has probably been asked a million times, but when I google with a site:avrfreaks.net everything I get is about a million years old.  I want to move my lighting...
Tuesday, 11 December 2018 - 19:22
Does anyone know a simple radio?
I have been using a radio transceiver from RFDigital that has become obsolete.  I use UART to talk to it from a microcontroller and PuTTY from my laptop USB to serial...
Tuesday, 22 May 2018 - 19:36
Hand soldering surface mount tantalum capacitors
Is there a danger of popping a surface mount tantalum capacitor because of absorbed moisture while hand soldering with a soldering iron?
Sunday, 10 December 2017 - 04:58
matrix inversion
I have implemented two matrix inversion algorithms and built them into a library.  If anyone is interested in solving n equations in n unknowns on an avr I will post my code...
Wednesday, 1 November 2017 - 23:15
Free samples from Microchip
I got a notification from Microchip to sign up for product and documentation change notifications and free samples.  Of course given the chance for free samples I signed up...
Sunday, 15 October 2017 - 17:34
changing clocks and bricking MCU
I am sure this question has been asked a zillion times, but I am going to ask it again.  apologies in advance.    I had an ATmega328P running with an external TTL...
Thursday, 28 September 2017 - 16:54
Variable color in AS7
Sometimes the color of variables in my projects are black instead of the default Navy.  Sometimes if I scroll up and then back down they will change to Navy.  Sometimes...
Saturday, 2 September 2017 - 16:44
Solved: RFID coil and superglue
I wound a 18cm x 20cm RFID coil big enough for my cat go walk through with 55 turns of 30 gauge magnet wire.  I measured the inductance with a cheapo meter to be 2.4 mH and...
Wednesday, 2 August 2017 - 15:39
.elf vs .hex
I noticed that AS7 default for programming flash is .elf.  AS6.2 was the same, but I was told it was going to change to .hex in AS7.  Do I just go with the default and...
Sunday, 23 July 2017 - 20:14