Search found 119 matches
- Tue Aug 11, 2020 8:08 am
- Forum: MicroPython pyboard
- Topic: Vbat use
- Replies: 1
- Views: 1679
Vbat use
Hi, I use a lipo battery on vbat pins... I ask to myself what's happen when battery is full and pyboard powered by usb. Is there an automatic switch for stop charging bat or have I to check level battery for save it at these times? Otherway, there isn't indication about level battery. Is there a pro...
- Sun Aug 09, 2020 8:55 am
- Forum: General Discussion and Questions
- Topic: check lipo battery level?
- Replies: 8
- Views: 4242
Re: check lipo battery level?
Hey, Finally, voltage divider works perfectly with just an oled display. I think that you can check correctly the level bat. But when I add 2 sensors (sgp30 and mcp9808), voltage fall down to a little value. Difference between full bat and empty bat is much more lower and it isn't possible to check ...
- Thu Aug 06, 2020 9:00 pm
- Forum: ESP32 boards
- Topic: Problem with drive WaveShare 2.7 inch B e-Paper
- Replies: 10
- Views: 6421
Re: Problem with drive WaveShare 2.7 inch B e-Paper
Yip,
With your code, you write black on black... ---> fb.fill(white)
Yup
With your code, you write black on black... ---> fb.fill(white)
Yup
- Mon Aug 03, 2020 7:09 pm
- Forum: General Discussion and Questions
- Topic: check lipo battery level?
- Replies: 8
- Views: 4242
Re: check lipo battery level?
Yop,
I tested with just 2 resistors of 10K for try something quicly. For moment, it looks perfect.
The count of my adc passed slowly, and clearly from 2449 to 2380 for 4 hours.
I will test with a zen diode too...
THANKS.
I tested with just 2 resistors of 10K for try something quicly. For moment, it looks perfect.
The count of my adc passed slowly, and clearly from 2449 to 2380 for 4 hours.
I will test with a zen diode too...
THANKS.
- Mon Aug 03, 2020 11:08 am
- Forum: General Discussion and Questions
- Topic: check lipo battery level?
- Replies: 8
- Views: 4242
- Sun Aug 02, 2020 2:56 pm
- Forum: General Discussion and Questions
- Topic: check lipo battery level?
- Replies: 8
- Views: 4242
check lipo battery level?
Hi, I would like use a pybstick from mchobby shop in a mobil way, so with a battery... On this board, there isn't a vbat pin... So I have connected a lipo battery of 3.7V - 400mAh on the vin pin... Powering is ok, and reload too... But it's not perfect, I can't known battery level for save the batte...
- Sun Aug 02, 2020 2:42 pm
- Forum: General Discussion and Questions
- Topic: simple USB interface using esp32?
- Replies: 1
- Views: 1220
Re: simple USB interface using esp32?
Hi,
have you seen installation guide on esp32 in micropython doc?
http://docs.micropython.org/en/latest/e ... ckref.html
good luck...
have you seen installation guide on esp32 in micropython doc?
http://docs.micropython.org/en/latest/e ... ckref.html
good luck...
- Sat Aug 01, 2020 1:50 pm
- Forum: Drivers for External Components
- Topic: VS1053b audio drivers: play music, speech or sound FX
- Replies: 15
- Views: 11320
Re: VS1053b audio drivers: play music, speech or sound FX
Hey!!!
I have received the same amplificator, and I have added a good microphone for voice...
That's amazing!!!
The record is perfect!
I can hear clearly a person in a room... Accuracy is awsome.
GOOOOD JOB.
All the best.
I have received the same amplificator, and I have added a good microphone for voice...
That's amazing!!!
The record is perfect!
I can hear clearly a person in a room... Accuracy is awsome.
GOOOOD JOB.
All the best.
- Mon Jul 27, 2020 5:06 pm
- Forum: Drivers for External Components
- Topic: MQ sensors
- Replies: 7
- Views: 7378
Re: MQ sensors
The subject is finally closed... I have received my professional LPG sensor... It's not possible to doesn't have influences of differents gas on mq sensor. So, you can't measure other thing than all gas of the sensor. For LPG gas, you can have an approximative value but for CO ; it's crazy. For dete...
- Mon Jul 27, 2020 1:24 pm
- Forum: Drivers for External Components
- Topic: Pimoroni Trackball breakout (PIM447)
- Replies: 4
- Views: 3826
Re: Pimoroni Trackball breakout (PIM447)
Finally, springton hat work fine. I don't know what happened when I tested it...
It's perfect with the pyb405 which has real interest. For example, I use it with epaper (for raspberry) and the trackball for command display text... Beautifull and perfectly convinient.
Thanks.
It's perfect with the pyb405 which has real interest. For example, I use it with epaper (for raspberry) and the trackball for command display text... Beautifull and perfectly convinient.
Thanks.