Search found 27 matches

by knightridar
Mon Jan 25, 2021 5:05 am
Forum: Hardware
Topic: ESP32-PICO-KIT Where and what are pin out numbers for SPI devices?
Replies: 3
Views: 404

Re: ESP32-PICO-KIT Where and what are pin out numbers for SPI devices and pin out numbers for I2C devices?

Thanks the pins worked. I'm new to using the SPI interface but was focused on the speed benefits. However, I've read that there is no error checking like with i2C or UART. When is this beneficial and can this be avoided? Right now I have 0 experience with using JTAG debuggers and not sure why they a...
by knightridar
Tue Jan 19, 2021 6:35 am
Forum: Hardware
Topic: ESP32-PICO-KIT Where and what are pin out numbers for SPI devices?
Replies: 3
Views: 404

ESP32-PICO-KIT Where and what are pin out numbers for SPI devices?

Hi, I'm using this: ESP32-PICO-KIT https://www.digikey.com/en/products/detail/espressif-systems/ESP32-PICO-KIT/9381703 I'm trying to figure out where the SPI pins are located on the board but the terminology on the ESP32 site is confusing. I know there are 4 sets of SPI pins based on the site below....
by knightridar
Sun Jul 19, 2020 5:39 am
Forum: ESP32 Arduino
Topic: ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between
Replies: 5
Views: 3796

Re: ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between

Well I solved the issue of my values updating successfully and being able to keep my serial readout at a pace that I wanted to read/transfer it at. I added these variables before void setup: uint32_t previousTime1 = 0; uint32_t deepsleepInterval = readingsInterval + 100; Then I added my deepsleep co...
by knightridar
Sat Jul 18, 2020 11:42 pm
Forum: ESP32 Arduino
Topic: ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between
Replies: 5
Views: 3796

Re: ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between

So I also have another reason for using millis on both the transmitter and receiver side. I used millis to slow down the output of the serial monitor readout so I can keep track of what is going on in the code. Here is what is happening when I removed millis from both transmitter side and receiver s...
by knightridar
Sat Jul 18, 2020 8:48 pm
Forum: ESP32 Arduino
Topic: ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between
Replies: 5
Views: 3796

Re: ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between

Thanks. I did what you said and put the flow of the deep sleep after reading 4 analog values and 1 I2C value. Without using ESP-Now and just reading 1 analog value without smoothing the values I was able to get a reading and put it to sleep. Since I'm using the ESP-Now protocol to transfer those val...
by knightridar
Mon Jul 06, 2020 8:43 am
Forum: ESP32 Arduino
Topic: ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between
Replies: 5
Views: 3796

ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between

ESP32 Deep Sleep, using millis in Arduino IDE, and then trying to do something in between I want to be able to take 4 analog readings and 1 I2C reading and then have the ESP32 go into deep sleep mode and wake up every 20 seconds or so, but right now I am keeping it simple just to try out the code wh...
by knightridar
Mon Jun 22, 2020 2:17 am
Forum: Hardware
Topic: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel
Replies: 6
Views: 1929

Re: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel

Well none of my 3.5V solar panels worked to power it successfully. :( I used this one but the reason I like to avoid using it is it is kind of big for my application. It has a much larger area footprint. https://grabcad.com/library/4-5-w-solar-panel-6-v-720-ma-monocrystalline-epoxy-coated-165-mm-x-1...
by knightridar
Sun Jun 07, 2020 5:50 pm
Forum: Hardware
Topic: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel
Replies: 6
Views: 1929

Re: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel

Some more images...
3.8V output from solar panel pointed to sun.jpg
3.8V output from solar panel pointed to sun.jpg (2.2 MiB) Viewed 1803 times
1.85v measured with 3.5V, 250 mA panel layed flat.jpg
1.85v measured with 3.5V, 250 mA panel layed flat.jpg (1.32 MiB) Viewed 1803 times
2.6V measured with solar panel layed slightly inclined.jpg
2.6V measured with solar panel layed slightly inclined.jpg (1.43 MiB) Viewed 1803 times
by knightridar
Sun Jun 07, 2020 5:47 pm
Forum: Hardware
Topic: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel
Replies: 6
Views: 1929

Re: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel

Hmm... I've attached some images of my setup. I tried to use 2 and then 3 solar panels in parallel (3.5V, 250 mA) with good day light and still the same results. It did not send the values. I wonder if I should have tried pressing the reset button on the transmitter side. Was getting all 0 values on...
by knightridar
Sat Jun 06, 2020 3:10 pm
Forum: Hardware
Topic: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel
Replies: 6
Views: 1929

Re: ESP32-PICO-KIT using ESP-Now protocol, power consumption and usage issue with 3.5V, 250mA solar panel

Is there a way to detect or measure these spikes besides an expensive oscilloscope or expensive fluke like multimeter? I’ve got a craftsman 82008 multimeter with autoranging. I’m also using ESP Now protocol so I wonder if the power consumption is less and what it actually is including also what the ...

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