ESP8266 WiFI temperature and humidity sensor
zyrotron wrote: The firmware and the connections seem correct to me. I am thinking that maybe the USB port does not supply enough current for the ESP to work properly and for this reason I have increased number of dropped packages when testing with ping. I will try again with an external supply instead of the FTDI that I used for the 3.3 volts.
Bad power supply can be problem for ESP8266. It's better to use external power supply, because not all FTDI can supply enough current.
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EasyIoT wrote:
zyrotron wrote: The firmware and the connections seem correct to me. I am thinking that maybe the USB port does not supply enough current for the ESP to work properly and for this reason I have increased number of dropped packages when testing with ping. I will try again with an external supply instead of the FTDI that I used for the 3.3 volts.
Bad power supply can be problem for ESP8266. It's better to use external power supply, because not all FTDI can supply enough current.
Unfortunately it's not the power supply either. I tried with an external (lab bench) power supply yet nothing changed. However, I just found somewhere the following:
Connect the top two pins (UTXD, GND) and bottom two pins (VCC, URXD) to the RXD, GND, VCC, TXD pins of a microcontroller. Note that VCC must be no more than 3.6V. The middle four pins are should be pulled up to VCC for normal operation
Is this true? Should I connect the other pins to VCC too?
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zyrotron wrote:
EasyIoT wrote:
zyrotron wrote: The firmware and the connections seem correct to me. I am thinking that maybe the USB port does not supply enough current for the ESP to work properly and for this reason I have increased number of dropped packages when testing with ping. I will try again with an external supply instead of the FTDI that I used for the 3.3 volts.
Bad power supply can be problem for ESP8266. It's better to use external power supply, because not all FTDI can supply enough current.
Unfortunately it's not the power supply either. I tried with an external (lab bench) power supply yet nothing changed. However, I just found somewhere the following:Connect the top two pins (UTXD, GND) and bottom two pins (VCC, URXD) to the RXD, GND, VCC, TXD pins of a microcontroller. Note that VCC must be no more than 3.6V. The middle four pins are should be pulled up to VCC for normal operation
Is this true? Should I connect the other pins to VCC too?
VCC and CH_PD pin should be connected to VCC.
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EasyIoT wrote:
zyrotron wrote:
EasyIoT wrote:
zyrotron wrote: The firmware and the connections seem correct to me. I am thinking that maybe the USB port does not supply enough current for the ESP to work properly and for this reason I have increased number of dropped packages when testing with ping. I will try again with an external supply instead of the FTDI that I used for the 3.3 volts.
Bad power supply can be problem for ESP8266. It's better to use external power supply, because not all FTDI can supply enough current.
Unfortunately it's not the power supply either. I tried with an external (lab bench) power supply yet nothing changed. However, I just found somewhere the following:Connect the top two pins (UTXD, GND) and bottom two pins (VCC, URXD) to the RXD, GND, VCC, TXD pins of a microcontroller. Note that VCC must be no more than 3.6V. The middle four pins are should be pulled up to VCC for normal operation
Is this true? Should I connect the other pins to VCC too?
VCC and CH_PD pin should be connected to VCC.
Then everything seems correct. Thanks anyway.
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Andy
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piman wrote: Hi, has anyone solve this issue, as I'm having the same problems, I've checked the wiring I'm using a separate power supply, and my FW is version:0.9.5. And my router sees it. Any other suggestions thank you.
Andy
Try with simple Arduino test program and send "AT" command on serial port to ESP8266. Response should be "OK". That way you will know if wiring is correct and ESP8266 is working.
My ESP thermostat works perfectly 2 months without hanging mounted on the wall.
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