Search found 14 matches
- Tue May 19, 2020 6:03 pm
- Forum: WiPy and CC3200 boards
- Topic: Trying to use 4 timers for PWM and fifth for Irq
- Replies: 3
- Views: 38565
Re: Trying to use 4 timers for PWM and fifth for Iraq
Thanks for response. I agree one timer could generate the 50Hz, how is the duty cycle generated, in software? The documentation is recommending the use of timers so it is all handled for you in hardware. When the channel is in PWM mode, the corresponding pin is assigned automatically, therefore ther...
- Sat May 16, 2020 8:54 am
- Forum: WiPy and CC3200 boards
- Topic: Trying to use 4 timers for PWM and fifth for Irq
- Replies: 3
- Views: 38565
Re: Trying to use 4 timers for PWM and fifth for Iraq
I hate auto correct, IRQ not Iraq !
Sent from my iPad using Tapatalk
Sent from my iPad using Tapatalk
- Sat May 16, 2020 8:21 am
- Forum: WiPy and CC3200 boards
- Topic: Trying to use 4 timers for PWM and fifth for Irq
- Replies: 3
- Views: 38565
Trying to use 4 timers for PWM and fifth for Irq
Hi, During this Covid 19 lockdown I have been trying to finish my I completed projects. When I first received my WIPY I tried building a bob the biped robot but never completed it. So, I have resurrected my WIPY and updated to the latest firmware. I found some great Arduino code and decided to use t...
- Wed Nov 27, 2019 10:40 am
- Forum: micro:bit boards
- Topic: bytearray objects use too much memory?
- Replies: 3
- Views: 3948
Re: bytearray objects use too much memory?
Thanks for the responses, I went with Jimmo's suggestion and have managed to control 136 leds without it crashing.
On to my next problem.
Steve
On to my next problem.
Steve
- Tue Nov 26, 2019 4:59 pm
- Forum: micro:bit boards
- Topic: bytearray objects use too much memory?
- Replies: 3
- Views: 3948
bytearray objects use too much memory?
There is a small chance I have found a problem with the way bytearray objects are created on the microbit. Background: I purchased a http://rasp.io/inspiring/ set of leds when the kickstarter was launched a couple of years ago. They are basically SK9822 leds in various shapes, straight 8, triangle o...
- Wed Apr 20, 2016 7:54 pm
- Forum: WiPy and CC3200 boards
- Topic: Powering 5V micro servos from expansion board
- Replies: 2
- Views: 4840
Powering 5V micro servos from expansion board
Progress to date: 1 controlled led using Blynk 2 controlled a single servo so now I am moving on to control 4 servos, as with another post I want to use my WiPy for a Bob the Biped robot. I have looked at the expansion board schematics and if I understand them correctly I can power the expansion boa...
- Wed Apr 20, 2016 7:31 pm
- Forum: WiPy and CC3200 boards
- Topic: Controlling hobby servos
- Replies: 21
- Views: 24815
- Tue Apr 19, 2016 6:54 pm
- Forum: WiPy and CC3200 boards
- Topic: trying to use GP11 as PWM
- Replies: 1
- Views: 2424
Re: trying to use GP11 as PWM -Fixed
I think I need my own forum to post my questions, because as soon as I post a question I manage to fix it! g=Pin('GP11',mode=Pin.OUT, alt=3) should be g=Pin('GP11',mode=Pin.ALT,alt=3) obvious once you know so here is some simple code I have used to drive my servo between the zero and 180 position. f...
- Tue Apr 19, 2016 5:58 pm
- Forum: WiPy and CC3200 boards
- Topic: trying to use GP11 as PWM
- Replies: 1
- Views: 2424
trying to use GP11 as PWM
I am trying to use GP11 as a PWM output to control a servo motor. Based on the pinout and alternate functions table I should use alternate function 3. So I have tried the following in the REPL >>> from machine import Pin >>> g=Pin('GP11',mode=Pin.OUT, alt=3) Traceback (most recent call last): File "...
- Mon Apr 18, 2016 7:21 pm
- Forum: WiPy and CC3200 boards
- Topic: Controlling hobby servos
- Replies: 21
- Views: 24815
Re: Controlling hobby servos
I have finally got the time to use my WiPy and want to use it to drive some servos, I have only had time for a quick look at the documents and it is going to be a few days before I can try it out. So I thought I might save myself some time by posting my understanding of PWM on the WiPy and (politely...