![]() But am I forced to use an ESP32, which I assume from your instructasble will work, or will it work using an ESP-12 as well. I suppose a ESP-01 isn't the best choice as I'm activating the BME280 only in case a reading is to be made (VCC to a GPIO). Which ESP should I use in case I'm additionally handling temperature, humidity and pressure every 15minutes collected by a BME280? Inbetween the ESP should be in deep sleep. The states only change if the seesaw moves. And secondly there's a seesaw that in case a certain amount of water is collected closes a reed relais or opens it. So this immediately identifies when it starts to rain. This means configure what will wake up the ESP32. To write a sketch to put your ESP32 into deep sleep mode, and then wake it up, you need to keep in mind that: First, you need to configure the wake up sources. There are two sensors for the rain part: the first one closes a gap between two metal spikes if a drop of water is collected. ESP32 Timer Wake Up from Deep Sleep Writing a Deep Sleep Sketch. My next project is to add an existing rain sensor, where existing means its hardware is there and working but the software is outdated and/or not working anymore. But mailing as well as acessing the internet and my raspberries works fine, too. Let me add that I'm curently using ESP-01 (with the soldering deep sleep mod), ESP-12 as well as Wemos D1 Mini mostly for checking the environment. Maybe you - or another nice person reading my question - find the time to help me in my area where I'm stuck. You seem to be the guy with a really big knowhow in the esp topic. There are also other option outlined here. Also in order to wake the ESP32 from DeepSleep you have to define a PIN to listen on using for example espsleepenableext1wakeup (bitmask, mode). Not to forget the also funny ones on youtube. Beware however, that millis () will overflow after about 49 days and you will have to handle this correctly. Because we can declare more than one pin, we have to define a so called “mask” instead of only a pin.ĭear Andreas, Thank you so much for your informative posts. Upon exit from Light-sleep, the digital peripherals, RAM, and CPUs resume operation and their internal states are preserved. In this mode, we can use several pins for wake-up. I used a 100k resistor and it worked.īut what, if we would like to have several buttons for the wake-up? Also here, our new toy offers an elegant solution: we use the ext1 wake-up source. One thing is important: You have, depending on the interrupt polarity, to connect an external pull-up or down resistor to the pin. Fortunately, we still have our Excel sheet and we can see, that RTC_GPIO00 and GPIO36 are connected to the same pin on the WROOM-32 module. ![]() To find-out the pin number is a little tricky: We have to use the GPIO number of the pin, not the RTC_GPIO pin number. And in addition, we can decide, if we want to trigger the wake-up by a low or a high state of the pin. To do this, we have to select the ext0 mode and tell the chip, which pin is connected to the button. Here, we get much more possibilities: We can wake-up the chip by one particular pin only. ![]() This was also possible with the ESP8266 by resetting the chip. The next is wake-up by an external source.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |