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SMD crystal package modification question
Hi all, I like to use crystals vs resonators for AVR boards (both Arduino and home made standalone). To replace the resonator on an Arduino board, a 2 smd no-lead package of size...
Tuesday, 22 October 2019 - 14:09
PWM control of a PMDC motor question
Hi all,   I have a Pololu "Baby Orangutan" controller board with a Toshiba TB6612FNG dual H-bridge IC.   The PWM mode of operation of this chip (see truth table) seems...
Thursday, 10 October 2019 - 13:44
ATMega328PB Datasheet error!
Hi all,   There seems to be a glaring error in the ATMega328PB datasheet (see attached image - click for full size):     The area in yellow is the problem....
Monday, 7 October 2019 - 05:37
Problem with fdev_open and certain printf formats
Hi all,   For all of my AVR projects, I set up the standard input, output and error streams using fdev_open() instead of the ridiculous "Java-like or Arduino-like" method of...
Thursday, 3 October 2019 - 07:06
Dual TinyX313 / TinyX5 programmer board wierd!
Hi all,   I was building a little board with a 20 pin ZIF socket on it and intended it to be able to program either ATTinyX313 or ATTinyX5, connected to a (genuine) Atmel...
Saturday, 16 March 2019 - 05:03
AVR and unused pins question
Hi all,   If I use, say, an ATTiny 85 with the internal R/C clock, then pins 2 and 3 (XTAL1 and XTAL2) are available for use as PB3 and PB4.   The datasheet says:...
Wednesday, 5 December 2018 - 17:36
Looking for suggestions: Wireless serial UART
Hi all,   Simple enough (I think).....   What I am looking for is a small, simple module that would run at probably 915 MHz. or 2.4 GHz. and simply have  VCC and...
Sunday, 18 November 2018 - 03:23
How to generate a new storage section (Arduino / AVR-GCC)
Hi all, If I have a hardware device that has, say, battery backed SRAM, is there a way that I can access it using variables rather than addresses? (I have the code for reading and...
Monday, 5 November 2018 - 17:00
Problem with reading eeprom WORD on a Tiny85
Hi all,   I'm using AVR-GCC version 4.9.4 with avr-libc version 2.0.0 and have run into a strange problem with reading a WORD (uint16_t) from eeprom.  Specifically,...
Wednesday, 10 October 2018 - 17:21
Looking for a certain PCI-E Adapter Card
Mods, if this is the wrong forum my apologies and please move it.   Hi all,   I'm looking for a PC card that will plug into a regular motherboard PCI-E 1X slot and...
Tuesday, 21 August 2018 - 14:51
How to distinguish between SRAM and PROGMEM at run time?
Hi all,   I need to know how to make a function that will accept data from an SRAM array or from PROGMEM and act accordingly.  The actual data I am trying to pass to the...
Saturday, 4 August 2018 - 18:07
SOLVED - Need help / ideas how to pack bits
Hi all,   I'm trying to convert 8 bytes of 5 bits each into 5 bytes of 8 bits each (this is to write a custom character bitmap into a VFD (vacuum fluorescent display) similar...
Friday, 13 July 2018 - 06:02

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