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Current consumption for logic chips
In reference to the old thread that was awakened, even on 14 pin dip TTL, power is not necessarily on pins 7 and 14! Off the top of my head - 7490 and 7475 had power elsewhere....
Monday, 8 March 2021 - 20:39
Multiple PWM Output with Atmega2560
Why 6 PWM? Usually there's three phases and the H-Bridge driver takes care of the rest.   \ There seems to be a few open source projects that use AVRs to drive BLDC motors....
Monday, 8 March 2021 - 11:57
SD card to USB Bridge?
There's software involved whether you like it or not.  I think your intention is that you don't want to have to write any code. 10 seconds of Googling I found the GL823 - USD...
Monday, 8 March 2021 - 08:08
Current consumption for logic chips
That's got very little to do with current consumption. What you quoted is the output drive specs. To pull a TTL input low requires some current, so you need to consider fan in/fan...
Monday, 8 March 2021 - 07:24
transmit analog signal over long distance
I don't think WiFi would be a good choice unless you had good antennas.    If you use wire for the interconnect - then you need to cope with environmental factors like...
Monday, 8 March 2021 - 07:19
ATtiny202 - Oregon Scientific temperature sensor replacement
Not sure of the exact reason for the post-amble apart from being a specific end-of-message sequence. Might be something to do with anti-collision detection (or collision for that...
Monday, 8 March 2021 - 06:36
ATtiny202 - Oregon Scientific temperature sensor replacement
Did we really need a moob picture? I can't un-see that now.
Monday, 8 March 2021 - 06:21
my atmega328p can't read data USART RS485 using max485
Get printf() working. Or use sprintf(). Should be enough to Google on.
Sunday, 7 March 2021 - 10:19
print counter value on lcd
That would be an array as we know it. You could have 5 widgets or you put them in a box and move them around more easily.
Saturday, 6 March 2021 - 12:05
Why do I receive this via BLE?
Get the basics going with Arduino then work backwards. Or just stick with Arduino as it does serial better than your code.
Saturday, 6 March 2021 - 10:56
print counter value on lcd
The comment in the code says it all - you’re converting an integer to a string - a string being a collection of chars. For a value of 1234, it gets converted into four ascii...
Saturday, 6 March 2021 - 10:48
water heater energy logger
Wire up a wall wart . With such lack of creativity, how can you call yourself aspy??
Friday, 5 March 2021 - 02:18