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What uC do you suggest to use for 100+kHz PWM MPPT?
N.Winterbottom wrote: Still struggling with the request for speed here, can we assume the PWM output is NOT being low-pass filtered. It's the only thing that makes any sense. Yes...
Saturday, 25 September 2021 - 09:42
What uC do you suggest to use for 100+kHz PWM MPPT?
Phyder wrote: .. In best case I would put a 20MHz crystal on the device and use a 8-bit timer with no prescaler. That would give me 20000000 / 256 = 78,125 kHz PWM with 8-bit...
Friday, 24 September 2021 - 20:09
faking a POT 500ohm with a filter pwm?
El Tangas wrote: IMO, since the detection of the joystick current output is just a capacitor that charges until it triggers a comparator at a certain level, all that is needed is...
Tuesday, 21 September 2021 - 20:21
faking a POT 500ohm with a filter pwm?
MarkThomas wrote:That's how I read it.  The OP wants to talk to his GameThingy with an AVR.   Yes, in #16 the OP says  :  Yes I want the GamerPort to assume I'...
Monday, 20 September 2021 - 23:14
faking a POT 500ohm with a filter pwm?
MarkThomas wrote: SPI 100k PDIP pots are about $1 per channel.   I see Microchip have a 4 channel one for ~ $1.50,  the MCP4352 series, which could suit, comes in...
Monday, 20 September 2021 - 05:59
faking a POT 500ohm with a filter pwm?
MarkThomas wrote: Can somebody tell me what the GamePort is expecting as input?  A voltage, a resistance, a current???? See the link in #3 They use a RC monostable, where...
Monday, 20 September 2021 - 03:46
faking a POT 500ohm with a filter pwm?
    S_K_U_N_X wrote: What is your exact application here ? Do you want to actually plug into a gameport like the link  ? Yes I want the GamerPort to assume I'...
Monday, 20 September 2021 - 01:36
faking a POT 500ohm with a filter pwm?
S_K_U_N_X wrote: Edit: Oh my mistake 100k ohms.. see "Resistive analogue inputs (joystick position)" https://old.pinouts.ru/InputCabl...   My application is to fake how a...
Friday, 17 September 2021 - 23:28
NTC
mostafa147 wrote:5d-7 ntc   5d-7 seems to be 5 ohms 2 amps, so it is really intended as inrush current limiting in power electronics.   ie Not a great choice...
Friday, 10 September 2021 - 04:54
Choosing next microcontroller family
i14r10 wrote: Also, I've been looking at Raspberry pi pico - 133MHz dual core processor, tons of features, about 5 $ cost. Those Atmegas now cost around 2-3 $. Seems RPi are now...
Friday, 27 August 2021 - 02:03
AVR DU
gchapman wrote: Who-me wrote:I wonder what top Baud and sustainable baud rates it can manage ? Might not know that until the preliminary datasheet arrives sometime after...
Tuesday, 24 August 2021 - 23:56
AVR DU
gchapman wrote:   AVR DU Product Brief – One USB 2.0 full-speed device(1) • Optional internal 3.3V voltage regulator • OSCHF oscillator can be tuned to the USB start-of-...
Tuesday, 24 August 2021 - 05:05

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