Search found 59 matches

by philwilkinson40
Tue Nov 27, 2018 1:43 pm
Forum: ESP8266 boards
Topic: Problems connecting to ESP8266 with picocom
Replies: 7
Views: 944

Re: Problems connecting to ESP8266 with picocom

try

Code: Select all

esptool.py -p /dev/ttyUSB0 --baud 115200 write_flash --flash_mode=dio --flash_size=4MB 0 esp8266-20180511-v1.9.4.bin
as you are using a wemos d1 mini pro
then

Code: Select all

picocom /dev/ttyUSB0 --b 115200
by philwilkinson40
Tue Nov 27, 2018 12:16 pm
Forum: General Discussion and Questions
Topic: Micropython as Arduino killer
Replies: 24
Views: 4162

Re: Micropython as Arduino killer

Matt, I think a key area that could do with some focus is use of the Micropython REPL. In Andreas' inital video he skips over this, but I think this is the the massive initial advantage for those arriving to Micropython from Arduino. The ability to directly interface with the bare metal and through ...
by philwilkinson40
Sun Nov 18, 2018 3:29 pm
Forum: General Discussion and Questions
Topic: Micropython as Arduino killer
Replies: 24
Views: 4162

Micropython as Arduino killer

I know i am not supposed to just post links on the forum. However Andreas Spiess is a legend in the Maker world. His latest video, despite being a bit frustrating for Micropython users, is still excellent publicity.
I hope this video brings more people into the community.
by philwilkinson40
Fri Oct 19, 2018 12:59 am
Forum: ESP32 boards
Topic: New Lolin D32 Pro with 4MB PSRAM
Replies: 46
Views: 11695

Re: New Lolin D32 Pro with 4MB PSRAM

Has anyone had problems with the LiPo connection on D32Pro? I have been running along fine with USB serial power. I get a decent reading at the battery terminals on the board, but nothing further in. Even VBAT has nothing ?!? I have a Lolin32 Pro V1.0.0 (with apparently the same battery circuit) whi...
by philwilkinson40
Wed Oct 17, 2018 11:45 pm
Forum: General Discussion and Questions
Topic: best way to store datestamps in upython
Replies: 4
Views: 596

Re: best way to store datestamps in upython

thanks @jickster and @pythoncoder for responding. The use case at present is simply recording a timestamp on an uSD card. At some point this uSD will be retrieved and data extraction and manipulation will outside the system. So I suppose I meant that 'optimising' means simple, efficient in time and ...
by philwilkinson40
Wed Oct 17, 2018 11:14 am
Forum: General Discussion and Questions
Topic: best way to store datestamps in upython
Replies: 4
Views: 596

best way to store datestamps in upython

This is a general question from a novice. What is the optimal approach (in Micropython) to store a series of timestamps? My use case is a bike counter. A radar sensor triggers a Pin on the rising edge of a ESP32 dev board, waking it from DeepSleep. I am recording the time of the external Pin interru...
by philwilkinson40
Sun Oct 14, 2018 8:49 am
Forum: Drivers for External Components
Topic: TinyRTC I2C Module DS1307 + AT24C32N
Replies: 13
Views: 2390

Re: TinyRTC I2C Module DS1307 + AT24C32N

continuity appeared fine. With a more detailed search around I found others complaining of similar problems . In common with the author of the link, the D1 diode was defective on both my shields. I removed the diode and resistor R5 completely and the RTC module now works. As the IC appears to be ok ...
by philwilkinson40
Fri Oct 12, 2018 7:11 am
Forum: Drivers for External Components
Topic: TinyRTC I2C Module DS1307 + AT24C32N
Replies: 13
Views: 2390

Re: TinyRTC I2C Module DS1307 + AT24C32N

similar but not the same!
2a.jpg
2a.jpg (4.54 KiB) Viewed 760 times
2b.jpg
2b.jpg (5.12 KiB) Viewed 760 times
by philwilkinson40
Fri Oct 12, 2018 2:42 am
Forum: Drivers for External Components
Topic: TinyRTC I2C Module DS1307 + AT24C32N
Replies: 13
Views: 2390

Re: TinyRTC I2C Module DS1307 + AT24C32N

it was 2.85V, so I put in a brand new CR1220 which read over 3V. Unfortunately this has the same result.
I repeated this on a second tiny RTC clone with the same outcome.
Phil
by philwilkinson40
Thu Oct 11, 2018 11:02 am
Forum: Drivers for External Components
Topic: TinyRTC I2C Module DS1307 + AT24C32N
Replies: 13
Views: 2390

Re: TinyRTC I2C Module DS1307 + AT24C32N

sorry to add to an old thread, but it seems relevant. I am using a clone TinyDS1307 with a WEMOS D1 mini Pro ESP8266. All works well but the RTC time does not survive a power reset. setting ds.halt(False) has the same outcome. I have tried the same code with the uRTC driver too with the same result....