Search found 653 matches

by OutoftheBOTS_
Thu May 30, 2019 6:49 am
Forum: General Discussion and Questions
Topic: New MicroPython release: v1.11
Replies: 7
Views: 897

Re: New MicroPython release: v1.11

Wow that was a fast update from v1.10 :)
by OutoftheBOTS_
Wed May 29, 2019 11:01 pm
Forum: General Discussion and Questions
Topic: Serial - bit banging
Replies: 15
Views: 893

Re: Serial - bit banging

The STM32F407 MCUs have 5 UARTS (3 x USART and 2 X UART). I prefer the STM32F407VGT6 with 1 mb of flash on the MCU and this board has another 16M-BIT of flash on a separate IC and is under $10US https://www.aliexpress.com/item/STM32F407VET6-STM32F407VGT6-STM32-System-Board-Development-Board-F407-Sin...
by OutoftheBOTS_
Wed May 29, 2019 12:50 am
Forum: General Discussion and Questions
Topic: IR encoder pyboard V1,1
Replies: 10
Views: 875

Re: IR encoder pyboard V1,1

Thanks for this info I appreciate this. Looks like it is a quadrature encoder. I looked at each side of the encoder and I only see one sensor on each side. Photoelectric Speed Sensor Encoder Coded Disc code wheel for Freescale Smart car https://www.ebay.com/i/191674247945?chn=ps On the tube Manufac...
by OutoftheBOTS_
Tue May 28, 2019 9:29 pm
Forum: General Discussion and Questions
Topic: Serial - bit banging
Replies: 15
Views: 893

Re: Serial - bit banging

Don't quote me on this but I think ESP32 hardware serial only has 8 bit serial
by OutoftheBOTS_
Tue May 28, 2019 9:24 pm
Forum: General Discussion and Questions
Topic: IR encoder pyboard V1,1
Replies: 10
Views: 875

Re: IR encoder pyboard V1,1

I have been googling most of the day attempting to understand the IR encoder and disk with pyboard https://images.app.goo.gl/aTNkSUFWzMHfjQeR8 The red wire + on the encoder is connected to a 5v power source and black wire - to ground. The disk is freely spinning between the encoder sensors. output1...
by OutoftheBOTS_
Tue May 28, 2019 8:05 am
Forum: General Discussion and Questions
Topic: IR encoder pyboard V1,1
Replies: 10
Views: 875

Re: IR encoder pyboard V1,1

I have used encoders a fair bit for my robotics projects. There is 2 types of encoders Quadrature encoders (has 2 square wave pules) and single pulse encoders (tachos type encoder). Quadrature encoders can tell direction of rotation dues to the order the 2 pulese are coming but single pulse encoder ...
by OutoftheBOTS_
Mon May 27, 2019 10:03 pm
Forum: Other Boards
Topic: Sipeed and ESP32 board
Replies: 1
Views: 324

Sipeed and ESP32 board

Have you guys seen this https://www.seeedstudio.com/Sipeed-Maixduino-Kit-for-RISC-V-AI-IoT-p-4047.html?utm_source=facebookads&utm_medium=ads&utm_campaign=Sipeed-Maixduino-Kit&fbclid=IwAR13dDzh7ybsGYkfynpiSDuC4FLFu2at27M8BQhSmAOSMp40xpPLrWADADU It has a Sipeed module as well as a ESP32 and a parallel...
by OutoftheBOTS_
Fri May 24, 2019 10:46 pm
Forum: Drivers for External Components
Topic: L298N Motor Driver Board Pyboard 6V DC motors
Replies: 11
Views: 573

Re: L298N Motor Driver Board Pyboard 6V DC motors

I play with motors a fair bit as love robotics and I find the L298N a really crap H-Bridge for any smaller motors. The L298N has a huge forward voltage of close to 3v. This means first of all it is super inefficient and gets really hot and drains your batteries very quickly. If you need to power 6v ...
by OutoftheBOTS_
Fri May 24, 2019 10:40 pm
Forum: Other Boards
Topic: [Any STM32 board] How much time this loop should take ?
Replies: 14
Views: 668

Re: [Any STM32 board] How much time this loop should take ?

I brought the super cheap Hantek DSO5102P scope, it has 2GHz sampling rate and it will read signals up to 100Mhz but the only difference between this model and the big brother model that will read 200MHz signals is the firmware so most people just buy the 100MHz model then update the firmware. You c...
by OutoftheBOTS_
Thu May 23, 2019 4:03 am
Forum: Other Boards
Topic: [Any STM32 board] How much time this loop should take ?
Replies: 14
Views: 668

Re: [Any STM32 board] How much time this loop should take ?

You can output any of the clocks to the MCO pins see attached pic of the setup for the STM32F4 then read them with a scope :)
mco.JPG
mco.JPG (32.69 KiB) Viewed 405 times