Search found 12 matches
- Mon May 29, 2017 8:41 pm
- Forum: General Discussion and Questions
- Topic: How to advance and imporve my MicroPython fu?
- Replies: 1
- Views: 2171
How to advance and imporve my MicroPython fu?
Quite a general question.... I am vaguely competent with Micropython, fumbling through with a lot of trawling forums, cut&paste code snippets and googling to get the job done in a clunky/sledgehammer fashion usually. There seem to be a lot of online courses, books, MOOC, tutorials, etc on various as...
- Mon Apr 03, 2017 8:44 pm
- Forum: General Discussion and Questions
- Topic: Difference between code in REPL and in main.py
- Replies: 1
- Views: 2341
Difference between code in REPL and in main.py
I am using a WiPy to read a TCS34725 colour sensor. When I run the code as snippets from the REPL, the readings are rock solid. But when the same code is running within main.py the sensor readings are drifting (significantly and predictably). It is a long shot, but is there any fundamental reason th...
- Tue Mar 21, 2017 2:07 pm
- Forum: WiPy and CC3200 boards
- Topic: Code only runs when USB serial connected
- Replies: 8
- Views: 7314
Re: Code only runs when USB serial connected
SOLVED
Despite the stepper motor working fine upto the point of failure, it looks like it was a power supply issue.
When I drive the stepper motor from a separate supply it all seems to work ok with or without USB connected.
Despite the stepper motor working fine upto the point of failure, it looks like it was a power supply issue.
When I drive the stepper motor from a separate supply it all seems to work ok with or without USB connected.
- Tue Mar 21, 2017 12:12 pm
- Forum: WiPy and CC3200 boards
- Topic: Code only runs when USB serial connected
- Replies: 8
- Views: 7314
Re: Code only runs when USB serial connected
It is the latest WiPy and on an Expansion Board.
Tried removing the jumpers as described - same problem
Tried removing the jumpers as described - same problem
- Tue Mar 21, 2017 11:31 am
- Forum: WiPy and CC3200 boards
- Topic: Code only runs when USB serial connected
- Replies: 8
- Views: 7314
Re: Code only runs when USB serial connected
XP JCJ1012S05 1.5A 5V output DC/DC converter into Vin/Gnd Plus 10uF capacitor for smoothing as it also has to run a stepper motor. The max. draw is only 800mA, so well within the supply's limits. The stepper motor is running in the first 1/3 of main.py too with no problems. But without USB, it just ...
- Tue Mar 21, 2017 10:46 am
- Forum: WiPy and CC3200 boards
- Topic: Code only runs when USB serial connected
- Replies: 8
- Views: 7314
Re: Code only runs when USB serial connected
It will not run with a Telnet connection either (and there are no error messages when it fails on Telnet). I've had a stab at try: except: to write exceptions to the SD card, but nothing seems to go there. I'm starting to thing it is some sort of power supply issue i.e. it is only working with USB p...
- Mon Mar 20, 2017 8:14 pm
- Forum: WiPy and CC3200 boards
- Topic: Code only runs when USB serial connected
- Replies: 8
- Views: 7314
Code only runs when USB serial connected
Has anyone else experienced this: I have some code which will run fine in the REPL as snippets, it will run fine as main.py (with USB serial connected), but when I try to run it without the USB plugged in, it just stops part way through. As I don't have the USB connected I can't see error messages o...
- Mon Mar 20, 2017 8:09 pm
- Forum: Drivers for External Components
- Topic: TCS34725 (colour sensor) can't creat object.
- Replies: 6
- Views: 6331
Re: TCS34725 (colour sensor) can't creat object.
Bit of an update:
When I moved the project onto a WiPy, I had to change "sensor = tcs34725.TCS34725(i2c)" to . "sensor = TCS34725.TCS34725(i2c)" for it to work.
When I moved the project onto a WiPy, I had to change "sensor = tcs34725.TCS34725(i2c)" to . "sensor = TCS34725.TCS34725(i2c)" for it to work.
- Wed Feb 15, 2017 11:29 am
- Forum: Drivers for External Components
- Topic: TCS34725 (colour sensor) can't creat object.
- Replies: 6
- Views: 6331
Re: TCS34725 (colour sensor) can't creat object.
Partially solved
The change that broke it - moving from Pyboard V1.0 to V1.1
No idea why, but I can get the TCS34725 sensor/library to work on a V1.0 board, but it does not seem to work (for me) on a V1.1.
The change that broke it - moving from Pyboard V1.0 to V1.1
No idea why, but I can get the TCS34725 sensor/library to work on a V1.0 board, but it does not seem to work (for me) on a V1.1.
- Wed Feb 15, 2017 10:02 am
- Forum: Drivers for External Components
- Topic: TCS34725 (colour sensor) can't creat object.
- Replies: 6
- Views: 6331
Re: TCS34725 (colour sensor) can't creat object.
I've been trying with your original code (using machine.I2C) and my adjusted code (with pyb.I2C): https://github.com/smssmssms/micropython-adafruit-tcs34725/commit/3abdf688b287fd7825a3f7d9fd3020f29d78c879 Both can 'see' the sensor with i2c.scan(), sensor.active(), sensor.gain(), etc. But both fail t...