- Mon Apr 27, 2015 5:04 pm
#15851
SweetPants, do you have a photo of your ESP with the soldered capacitor??
- Tue Apr 28, 2015 5:03 am
#15895
I've tried adding a 15k pull-up resistor to RST, but after a few of on/off,it had crashed and I had to reset it manually.
- Tue Apr 28, 2015 6:12 am
#15899
A pull-up will not help you as it is already pulled-up internally
zioax wrote:I've tried adding a 15k pull-up resistor to RST, but after a few of on/off,it had crashed and I had to reset it manually.
A pull-up will not help you as it is already pulled-up internally
- Tue Apr 28, 2015 10:16 am
#15916
That's not strictly true. The internal pullup may be 'weak', and the addition of a 'stiffer' external pull-up resistor can add noise immunity. Instead of 15k, try ... 1k. If you're never going to use the RST input, just tie it to Vcc. A pull-up resistance of about 0 ohms.
To those using electromechanical relays and still having reset problems... are you using a snubber diode across the relay coil? Google it.
Sweetpants wrote:zioax wrote:I've tried adding a 15k pull-up resistor to RST, but after a few of on/off,it had crashed and I had to reset it manually.
A pull-up will not help you as it is already pulled-up internally
That's not strictly true. The internal pullup may be 'weak', and the addition of a 'stiffer' external pull-up resistor can add noise immunity. Instead of 15k, try ... 1k. If you're never going to use the RST input, just tie it to Vcc. A pull-up resistance of about 0 ohms.
To those using electromechanical relays and still having reset problems... are you using a snubber diode across the relay coil? Google it.
