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Bench Power Supply resistor value question.
Daybear63 wrote: I finally came around to test the transistors and BC108 was dead but the rest was ok. The only equivalent i had laying around was 548B (i hope it is good...
Sunday, 20 March 2022 - 23:23
Additional ADC ports approach?
avrcandies wrote:Do you know what is the lowest cost I2C expander  part#/cost?   See the link and comment in #28    avrcandies wrote:You can get a shift reg...
Friday, 18 March 2022 - 03:17
Additional ADC ports approach?
djoshi wrote:So I need to get mux that can work with i2c control.    Yes.  It seems strange there are not many "i2c 4051's" - maybe because it is so easy to make...
Friday, 18 March 2022 - 01:20
simple overvoltage protection circuit?
mannen wrote: What is the best way to do a simple (1 or tops 2 simple components max) overvoltage protection for a powerline? (just to save the microcontroller a bit longer if you...
Thursday, 17 March 2022 - 04:12
Logic Gate type vs operating speed help
jgmdesign wrote: Maybe a simple octal TRANCEIVER would be a better choice? This way 'The Doc' can have it both ways.   Yup, and for highest speed, there are also parts...
Thursday, 17 March 2022 - 02:17
Logic Gate type vs operating speed help
DocJC wrote: I'm not sure how you think a RPi will accept 100~250 MSa/Sec, or how the Mega32 will deliver it ?   There is the back-of-the-napkin, initial dreaming...
Thursday, 17 March 2022 - 01:54
PWM Phase Correct at 300kHz using ATMEGA128L
avrcandies wrote:they don't want 10kW applied/removed all the time True, but the OP did mention  kapton heater, which is a small resistive film heater,  usually...
Wednesday, 16 March 2022 - 21:29
PWM Phase Correct at 300kHz using ATMEGA128L
davidvp wrote: Ideally a 1% increment. The application is a flyback transformer that powers a kapton heater so to have good control over the whole power spectrum 1% would be...
Wednesday, 16 March 2022 - 19:08
Logic Gate type vs operating speed help
DocJC wrote: For one project, I'm interested in connecting / disconnecting, (Hi Z), an 8-Bit digital bus signal source to the data bus, (to avoid bus contention). I'd like to be...
Wednesday, 16 March 2022 - 19:00
Microchip Studio new chips support
 In cases like this, users often just Write/Edit/comment mainly in their Editor Of Choice, and then download and debug using the MCU's IDE. The IDEs allow register view and...
Wednesday, 16 March 2022 - 07:57
PWM Phase Correct at 300kHz using ATMEGA128L
davidvp wrote: I get the correct frequency, but the duty cycle works in increments of around 4%, similar to the table below:   Close. It's actually 3.75% A pencil shows...
Tuesday, 15 March 2022 - 23:32
Feeding oscillation into atmega644P and creating an alarm
raser1992 wrote:What would be the easiest way to achieve this using timer0?    The simplest timer0 code is to run a timer interrupt at 2.56ms, that clears...
Tuesday, 15 March 2022 - 05:54

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