Search found 150 matches

by rcolistete
Fri Aug 16, 2019 1:10 am
Forum: Pyboard D-series
Topic: STM32F722 +LCD160CR v1.1, WBUS pins
Replies: 4
Views: 175

Re: STM32F722 +LCD160CR v1.1, WBUS pins

LCD160CR can work with only I2C, AFAIK and tested.
by rcolistete
Wed Aug 07, 2019 7:25 pm
Forum: Other Boards
Topic: Teensy 4.0
Replies: 4
Views: 630

Re: Teensy 4.0

News/reviews about Teensy 4.0 : https://hackaday.com/2019/08/07/new-teensy-4-0-blows-away-benchmarks-implements-self-recovery-returns-to-smaller-form/ https://blog.hackster.io/teensy-4-0-brings-600-mhz-cortex-m7-to-the-arduino-world-13d451477918 This PDF shows that the 2 x 12 bits ADC speed is 1 Msa...
by rcolistete
Wed Aug 07, 2019 4:03 pm
Forum: Other Boards
Topic: Teensy 4.0
Replies: 4
Views: 630

Teensy 4.0

A new powerful Teensy which would be nice to have MicroPython.

Teensy 4.0 was released today
Image

More details :
Teensy 4.0 Development Board at PJRC Store

Forum topic :
https://forum.pjrc.com/threads/54711-Te ... -Beta-Test
by rcolistete
Mon Jul 29, 2019 2:10 am
Forum: Other Boards
Topic: New OpenMV board
Replies: 19
Views: 6438

Re: New OpenMV board

OpenMV Cam H7 will have a SDRAM version until end of the 2019, see the new update : OpenMV Cam H7 - UPDATE #25 - Kickstarter Shipping Done! - JULY 28, 2019 ...SingTown has produced a version of the OpenMV Cam H7 with SDRAM. We are working on the driver bringup for this new board and once completed w...
by rcolistete
Tue Jul 02, 2019 2:14 pm
Forum: Pyboard D-series
Topic: pyb.stop() / machine.lightsleep() time to wake up
Replies: 1
Views: 167

pyb.stop() / machine.lightsleep() time to wake up

One fantastic feature of Pyboard D is a very short time to wake up from lightsleep , which has very low current (170 uA) while retaining the RAM state. I've measured 344-404 us using the software : from pyb import RTC rtc = RTC() rtc.datetime((2019, 6, 30, 7, 17, 23, 30, 0)) t1 = rtc.datetime() rtc...
by rcolistete
Mon Jul 01, 2019 2:06 pm
Forum: Pyboard D-series
Topic: Power usage on Pyboard D
Replies: 5
Views: 381

Re: Power usage on Pyboard D

Reserved.
by rcolistete
Mon Jul 01, 2019 2:05 pm
Forum: Pyboard D-series
Topic: Power usage on Pyboard D
Replies: 5
Views: 381

Re: Power usage on Pyboard D

Reserved.
by rcolistete
Mon Jul 01, 2019 2:04 pm
Forum: Pyboard D-series
Topic: Power usage on Pyboard D
Replies: 5
Views: 381

Re: Power usage on Pyboard D

WiFi power usage. Pyboard D SF2W with USB cable, REPL idle, MicroPython v1.10-445-ga9b1d3ca3 on 2019-05-29, USB at 5.08V : - WiFi AP active, no connections, increases the electric current 43-46 mA. Notice after "ap.active(False)" the electric current doesn't come back to the values before WiFi AP ac...
by rcolistete
Thu Jun 27, 2019 3:24 pm
Forum: Pyboard D-series
Topic: Low power support on Pyboard D : pyb.wfi, pyb.stop, pyb.standby(), etc
Replies: 1
Views: 140

Low power support on Pyboard D : pyb.wfi, pyb.stop, pyb.standby(), etc

Is there to Pyboard D any equivalent of script "lowpower.py" from Pyboard 1.1 :
https://gist.github.com/dpgeorge/bf477eb883b6d189eae9
from topic "low power support?" ?

Is "pyb.wfi()" working on Pyboard D ? Some tests don't show any difference in power usage.
by rcolistete
Thu Jun 27, 2019 2:02 pm
Forum: Pyboard D-series
Topic: Power usage on Pyboard D
Replies: 5
Views: 381

Re: Power usage on Pyboard D

Pyboard D SF6W with USB cable, REPL idle, MicroPython v1.10-445-ga9b1d3ca3 on 2019-05-29, USB at 5.08V : - 50.3 mA @ 216 MHz; - 39.3 mA @ 168 MHz; - 31.0 mA @ 144 MHz (default); - 27.4 mA @ 120 MHz; - 23.3 mA @ 96 MHz; - 19.4 mA @ 72 MHz; - 15.3 mA @ 48 MHz; - 13.5 mA @ 36 MHz; - 11.2 mA @ 24 MHz (R...