@MatiasV to switch on/off power to sensors and oled displays it is best to use a logic level P-channel Fet, something like an Si2305, it is not good practice to switch power to sensors/displays by switching the ground, it's OK for a relay though.

See this link
https://www.avrfreaks.net/forum/hi-side-fet-switch-low-voltage

Fixed -

You have to use void before() and place it before void presentation()

void before() {
pinMode (4, OUTPUT);
digitalWrite(4, HIGH);
}

void presentation()
{
// Send the Sketch Version Information to the Gateway
Serial.print("Send Sketch Info: ");
sendSketchInfo(SKETCH_NAME, SKETCH_VERSION);
Serial.print(SKETCH_NAME);
Serial.println(SKETCH_VERSION);
wait(LONG_WAIT);

@alex28 This is the same seller I have used for many of my purchases AVR's, STM32F's etc. When you're buying hundreds it's not just a few bucks! AliExpress are really good, any issues and you get a refund in a couple of days.

I have only had a couple of issues with my hundreds of purchases over the years.

@echi it's too expensive as you can get one from AliExpress a lot cheaper.
#Aliexpress ￡3.33 | Keywish RF-Nano for Arduino Nano V3.0, Micro USB Nano Board ATmega328P QFN32 5V 16M CH340, Integrate NRF24l01+2.4G wireless,Imme
https://a.aliexpress.com/_dYIhsQZ

@bikerMark said in Nodemanage + EasyPCB Sleep:

@sundberg84 said in Nodemanage + EasyPCB Sleep:

@ElCheekytico - even better with transistor if you know how, atleast for the higher current things

This is exactly what I'm trying to achieve these days with an Attiny. Found a way to toggle on/off with one button: http://www.technoblogy.com/show?VOO (scroll down). When OFF; ATtiny is is a 0.5uA (!) sleep.

Now I want to swicth the full 10Amps on 40V with that aw..Tiny signal.
@sundberg84 do you know how to boost the signal to a (couple of) transistor(s)?

Any advice would be highly appreciated!

I would not take too much notice of that Web Page schematics, he has drawn the Fets the wrong way around - this is on all his examples (He has mixed up the drawing of the P & N Mosfets)

@MatiasV said in Nodemanage + EasyPCB Sleep:

@user2684 Did you experience any problems reading analog sensors that are powered via a transistor? I can not get reliable measurements from Capacitive Soil moisture Sensors when they are switched by a transistor.

@MatiasV - How are you wiring up your transistor?
Can you see the Voltage to the Sensor switching?

@MatiasV to switch on/off power to sensors and oled displays it is best to use a logic level P-channel Fet, something like an Si2305, it is not good practice to switch power to sensors/displays by switching the ground, it's OK for a relay though.

See this link
https://www.avrfreaks.net/forum/hi-side-fet-switch-low-voltage

Fixed -

You have to use void before() and place it before void presentation()

void before() {
pinMode (4, OUTPUT);
digitalWrite(4, HIGH);
}

void presentation()
{
// Send the Sketch Version Information to the Gateway
Serial.print("Send Sketch Info: ");
sendSketchInfo(SKETCH_NAME, SKETCH_VERSION);
Serial.print(SKETCH_NAME);
Serial.println(SKETCH_VERSION);
wait(LONG_WAIT);

Hi,
I have a development board that i designed for an Arduino Pro Mini
It runs from a Lithium battery i.e. about 3.7 to 4.2v
I have use this board for various projects, it has a 433Mhz Tx board an NRF24L01, a few i2c ports 3v3 & 5v, it has a switched power source (P-Channel Fet) for my sensors that are on the i2c port.
So i have now come across the Mysensors site and decided to have a try.
It works fine if i permenantly supply power to the sensors and the NRF24L01, but i cannot get it to switch my P-Channel Fet that controls power for the sensors and the NRF24L01.
I did read that you have set set the digital I/O for the AVR up in the presentation section, which i have tried.

Any clues or pointers please?

Thanks,

Phil.