Just a note:
On PYBD the RTC clock is factory calibrated. However, temperature compensation isn't as good as for the RV-8803 (typical +/-25ppm from -40C..85C).
Search found 129 matches
- Wed Feb 10, 2021 7:36 pm
- Forum: Hardware Projects
- Topic: ATE-NIC project using Pyboard D-series and 20+ I2C
- Replies: 10
- Views: 764
- Tue Feb 09, 2021 8:36 pm
- Forum: Hardware Projects
- Topic: ATE-NIC project using Pyboard D-series and 20+ I2C
- Replies: 10
- Views: 764
Re: ATE-NIC project using Pyboard D-series and 20+ I2C
Nice Project!
Q: Why are you using an external RTC chip? Isn't the PYBD RTC good enough?
Q: Why are you using an external RTC chip? Isn't the PYBD RTC good enough?
- Wed Jan 27, 2021 11:37 am
- Forum: General Discussion and Questions
- Topic: Multiple Usb HID interface
- Replies: 7
- Views: 463
Re: Multiple Usb HID interface
We are using it on PYBD SW6 to emulate a combination of TOUCH & KEYBOARD. It works perfect.
- Tue Jan 26, 2021 11:55 am
- Forum: General Discussion and Questions
- Topic: Multiple Usb HID interface
- Replies: 7
- Views: 463
- Fri Sep 11, 2020 2:48 pm
- Forum: MicroPython pyboard
- Topic: [SOLVED] Prevent powerbank to go into standby mode
- Replies: 4
- Views: 855
Re: Prevent powerbank to go into standby mode
It's usually ok to create power peaks onec and a while to keep the power bank happy. def wup(p): for i in range(1000): pass rtc.wakeup(10000, wup) This is a pretty naive way to create power consumption peaks, but it shows the idea. Note: If you run your pyboard at a low processor clock it might not ...
- Mon Aug 17, 2020 8:06 am
- Forum: Pyboard D-series
- Topic: wbus-DIP28 button use?
- Replies: 5
- Views: 837
Re: wbus-DIP28 button use?
This button allows to put the STM32 processor into boot mode. Keep in mind that ST boot loader supports only the FS port!
- Sat Aug 01, 2020 5:48 pm
- Forum: General Discussion and Questions
- Topic: RTC sub-seconds prescaler register not writable
- Replies: 2
- Views: 622
Re: RTC sub-seconds prescaler register not writable
Keep in mind that the RTC has to be fully powered down to change it's configuration.
- Mon Jul 13, 2020 8:06 am
- Forum: Pyboard D-series
- Topic: PYBD WBUS connector
- Replies: 22
- Views: 5492
Re: PYBD WBUS connector
Any copper track to a solder pad simply increases adhesive power between copper layer and substrate. This is very important in case of poor soldering which usually happens during manual assembly.
- Thu Jul 09, 2020 9:45 am
- Forum: Programs, Libraries and Tools
- Topic: TypeError: 'bytearray' object doesn't support item deletion
- Replies: 9
- Views: 1542
Re: TypeError: 'bytearray' object doesn't support item deletion
Maybe I wasn't precise enough with my wording.
Intact was meant the way that storage space stays fixed not it's content.
Of course there are better ways to deal with non-contiguous data, but if you have to shift data chunks around it is pretty efficient.
Intact was meant the way that storage space stays fixed not it's content.
Of course there are better ways to deal with non-contiguous data, but if you have to shift data chunks around it is pretty efficient.
- Wed Jul 08, 2020 10:13 am
- Forum: Programs, Libraries and Tools
- Topic: TypeError: 'bytearray' object doesn't support item deletion
- Replies: 9
- Views: 1542
Re: TypeError: 'bytearray' object doesn't support item deletion
What about:
This construct leaves the bytearray intact, which might come in handy for later reuse.
Code: Select all
lba = 1000 # size of bytearray
n = 10 # number of bytes to delete
ba = bytearray(lba)
mba = memoryview(ba)
mba[0:-n] = mba[n:]