Search found 121 matches
- Mon May 20, 2019 8:35 pm
- Forum: ESP32 boards
- Topic: Power consumption of TTGO T8 Board
- Replies: 15
- Views: 9453
Re: Power consumption of TTGO T8 Board
I‘ll try it tomorrow and will report the outcome here!
- Mon May 20, 2019 8:19 pm
- Forum: ESP32 boards
- Topic: Power consumption of TTGO T8 Board
- Replies: 15
- Views: 9453
Re: Power consumption of TTGO T8 Board
So blowing the power IC off the board could help?
- Mon May 20, 2019 7:34 pm
- Forum: ESP32 boards
- Topic: Power consumption of TTGO T8 Board
- Replies: 15
- Views: 9453
Re: Power consumption of TTGO T8 Board
Maybe it‘s a Pullup Resistor burning power? But I‘m not sure which one... I‘m assuming the GPIOS of the ESP32 are floating in deepsleep and so not sourcing any current to a pullup resistor like R14 which is pulling GPIO12 high.
- Mon May 20, 2019 7:13 pm
- Forum: ESP32 boards
- Topic: Power consumption of TTGO T8 Board
- Replies: 15
- Views: 9453
Re: Power consumption of TTGO T8 Board
Some news here: 1. VDD_SDIO does not go low when entering deepsleep. It seems that the Resistor R20 is placed on the board and pulling VDD_SDIO to 3.3V. Removing it helped and I lost one more mA (1.5 mA total in deepsleep) 2. I powered the board directly on the 3.3V rail, so the SYS8008B Voltage reg...
- Sun May 19, 2019 7:08 pm
- Forum: ESP32 boards
- Topic: Power consumption of TTGO T8 Board
- Replies: 15
- Views: 9453
Re: Power consumption of TTGO T8 Board
VDD_SDIO is not pulled low when entering deepsleep. So flash and psram aber active in deepsleep. Any ideas how I could change that?
- Sat May 18, 2019 5:41 am
- Forum: ESP32 boards
- Topic: Power consumption of TTGO T8 Board
- Replies: 15
- Views: 9453
Re: Power consumption of TTGO T8 Board
Hi jimmo, thanks for your help! This is the code I use, maybe I can switch something of in the Code? import time import machine led = machine.Pin(21, machine.Pin.OUT) while True: # 30 Secs blink for i in range (0, 15): time.sleep(1) led.value(1) time.sleep(1) led.value(0) # 30 secs deepsleep machine...
- Fri May 17, 2019 8:46 pm
- Forum: ESP32 boards
- Topic: Power consumption of TTGO T8 Board
- Replies: 15
- Views: 9453
Power consumption of TTGO T8 Board
Hello Forum, I‘ve got a TTGO T8 v1.7 Board, details can be found on Github https://github.com/LilyGO/TTGO-T8-ESP32 and I‘ve attached the schematics. The board can be powered by a Battery and this battery does only provide the 3.3V rail. Seems pretty right to me! But when I use machine.deepsleep() an...
- Wed May 15, 2019 11:58 am
- Forum: Pyboard D-series
- Topic: ADC specs
- Replies: 1
- Views: 2018
Re: ADC specs
You want to look up the specs of the microcontroller itself: https://www.st.com/en/microcontrollers- ... 2f7x2.html
- Mon May 13, 2019 9:41 am
- Forum: ESP8266 boards
- Topic: How to switch on a electric bulb with ESP8266 board?
- Replies: 50
- Views: 31025
Re: How to switch on a electric bulb with ESP8266 board?
@RajaRamesh:
You simply switch on or off the Pin which is connected to the Relay. There is no magic involved here!
You simply switch on or off the Pin which is connected to the Relay. There is no magic involved here!
- Sat May 11, 2019 7:47 am
- Forum: ESP8266 boards
- Topic: Powering relay with NodeMcu
- Replies: 8
- Views: 5358
Re: Powering relay with NodeMcu
By the way: You can think of voltage as the force with which a water stream flows (water high up from a mountain has more force). The current is the amount of water flowing.
So you stream from the ESP8266 has enough force but simply it is not wide enough and so it‘s not enough water.
So you stream from the ESP8266 has enough force but simply it is not wide enough and so it‘s not enough water.