Search found 69 matches
- Wed Jan 27, 2021 1:26 pm
- Forum: Hardware Projects
- Topic: Bioloid Quad Walker Robot - Roz
- Replies: 14
- Views: 16832
Re: Bioloid Quad Walker Robot - Roz
Thanks Peter. I have a Hackaday project for Roz, which you can see here. I'll probably be updating there more often than here.
- Tue Jan 26, 2021 3:50 pm
- Forum: Hardware Projects
- Topic: Bioloid Quad Walker Robot - Roz
- Replies: 14
- Views: 16832
- Tue Jan 26, 2021 2:28 pm
- Forum: Hardware Projects
- Topic: Bioloid Quad Walker Robot - Roz
- Replies: 14
- Views: 16832
Re: Bioloid Quad Walker Robot - Roz
So I've started working on Roz again - redid everything this time. New chassis (3D printed), all new electronics and sensors, etc. The main compute engine for the robot is a raspberry pi zero running Python, but I have two MicroPython boards on the robot. https://jons.page/pics/PXL_20210104_21463135...
- Fri Jan 01, 2021 3:10 pm
- Forum: Drivers for External Components
- Topic: VL53L1X ToF distance sensor - adapting to micropython
- Replies: 19
- Views: 64256
Re: VL53L1X ToF distance sensor - adapting to micropython
Okay, here's my code, which works pretty much 100% of the time. Note that the delays are absolutely required, but the times may need optimization. The values that I use work, but you might be able to get away with shorter delays. You will of course want to change out the shutdown pin definitions wit...
- Fri Nov 27, 2020 9:59 pm
- Forum: Drivers for External Components
- Topic: VL53L1X ToF distance sensor - adapting to micropython
- Replies: 19
- Views: 64256
Re: VL53L1X ToF distance sensor - adapting to micropython
So I'm working on Roz, my bioloid quad walker, and I've built a new head with five VL53L1X sensors in it. It turns out the OpenMV project has a perfectly functional VL53L1X library: https://github.com/openmv/openmv/blob/master/scripts/libraries/vl53l1x.py That works for a single sensor. I added a ne...
- Tue Feb 26, 2019 5:28 pm
- Forum: Drivers for External Components
- Topic: Ultimate Sensor Fusion Solution - MPU9250
- Replies: 1
- Views: 3011
Ultimate Sensor Fusion Solution - MPU9250
This post is in reference to the Tindie board: https://www.tindie.com/products/onehorse/ultimate-sensor-fusion-solution-mpu9250/ Its an awesome little board, and Simon Levy wrote a nice python driver for it for the Raspberry pi, which I ported to MicroPython (which was a pretty trivial set of change...
- Sat Dec 31, 2016 2:37 pm
- Forum: ESP8266 boards
- Topic: Does ESP8266 has softuart module
- Replies: 8
- Views: 8872
Re: Does ESP8266 has softuart module
I would be interested in this also. I need to connect to a GPS, running at 9600 baud.shaoziyang wrote: I hvae write a soft uart module today, it can works, but it can't receive a lot of continuous data.
- Wed Nov 02, 2016 4:49 pm
- Forum: MicroPython pyboard
- Topic: Powering the pyboard
- Replies: 19
- Views: 20154
Re: Powering the pyboard
3.3 volts definitely isn't enough - you have to provide 3.6 volts as an absolute minimum, but realistically you're better off providing 5 volts, just like it would get if it is plugged into USB.kamikaze wrote: Does it mean that I should step-down voltage to 3.6V because 3.3V is not enough?
- Jon
- Tue Nov 01, 2016 2:19 pm
- Forum: MicroPython pyboard
- Topic: Powering the pyboard
- Replies: 19
- Views: 20154
Re: Powering the pyboard
Actually, you're right - I only use that regulator with a 1s or 2s lipo, so max of about 8.4 volts in.
- Jon
- Jon
- Tue Nov 01, 2016 11:36 am
- Forum: MicroPython pyboard
- Topic: Powering the pyboard
- Replies: 19
- Views: 20154
Re: Powering the pyboard
I've used this switching regulator to get 12 volts down to 5 volts for my custom pyboards:
https://www.pololu.com/product/2119
That regulator could also be powered from a 2 cell or even a 1-cell lipo if needed, since it can both switch up and switch down.
- Jon
https://www.pololu.com/product/2119
That regulator could also be powered from a 2 cell or even a 1-cell lipo if needed, since it can both switch up and switch down.
- Jon