| Discussion Title | Created date |
|---|---|
|
Controller for 8 AC LED Strips on a Christmas Tree It happened that some local retailers imported, from China, LED strips made for 220V (50Hz). One strip could have a length of 1m, 2m, 3m... etc. But it (as a single LED) has... |
Monday, 16 December 2019 - 18:57 |
|
Six-Input AC Voltmeter Hi, Lately, I built this voltmeter, having six inputs, as an in-house tool (at workplace). It measures the tap voltages of a transformer of a mains relay-stabilizer (having... |
Wednesday, 18 September 2019 - 11:03 |
|
Quiz for fun, two I/O pins and 16 levels On the thread https://www.avrfreaks.net/forum/quiz-fun-io-pin-and-4-levels we found out that, by adding two external resistors (pull-up and pull-down), an I/O pin (as of ATmega8)... |
Sunday, 14 July 2019 - 00:56 |
|
Quiz for fun, I/O pin and 4 levels Let us assume; we like to monitor on a scope the timing of 4 stages while an MCU code is running. But one I/O pin only is free for this task. As we know, an I/O pin (as of... |
Thursday, 11 July 2019 - 17:59 |
|
Simple Way to Check Wire Continuity Please note that this subject may interest some members only. And I am not sure if what I present here is new or not. Lately, I had to check the continuity of each wire of... |
Wednesday, 27 February 2019 - 23:16 |
|
Parallel Programming Procedure of ATmega328P On the datasheet of ATmega8, there is a section for “Parallel Programming”. This section is not provided on the datasheets of ATmega328P that I downloaded lately. Do you think the... |
Wednesday, 31 October 2018 - 14:02 |
|
To graduate students in telecommunications I am just curious to know if, at the today’s universities, the following statement is still valid. "Demodulating a single side-band suppressed carrier signal (SSB-SC) is much... |
Sunday, 21 October 2018 - 11:17 |
|
MCU EEPROM and Lock Bits Just to be sure, isn’t true that it is not possible locking the MCU flash memory (of code) without locking with it the internal EEPROM? In other words, it is not possible reading... |
Wednesday, 25 July 2018 - 16:00 |
|
0-5999 to 0-99h:59m Lately, I needed to convert 0-5999 to 0-99h:59m. The operation requires a division by 60; the dividend in minutes, the result in hours and the remainder in minutes. Instead of... |
Saturday, 21 July 2018 - 00:24 |
|
Channel Bandwidth and Bit Rate If we like transmitting digital data [0,1] thru a voice channel (as 300 to 3300 Hz), could the bit rate be made close to the bandwidth upper limit? I am working on it by... |
Thursday, 23 November 2017 - 00:36 |
|
Warning of redefining a register I have ATmega8 and I write its codes in assembly only using AS6.2 SP1. I agree that, in case a register is redefined, the warning is useful in general; it... |
Thursday, 28 September 2017 - 14:23 |
|
TWI: General call 0000000 for read I have two ATmega8 MCUs. The first one, the TWI master, is on an inverter board. The second one, the TWI slave, is on a meter board (measuring the battery voltage and... |
Wednesday, 13 September 2017 - 15:28 |