@Nicklas-Starkel said:
@siod , I had the same problem.
I actually ordered a original NRF 24 mini and this seemed to solve some of my problems.
i think another problem I'm having is that my batteries has a huge self discharge (old 3.7v 18650)
On a side note.. I'm with @sling .
Loose the pullups and set them LOWยด.
I have a 1MOhm resistor between VCC and PIN 2 and PIN 3 (also 2 switches).
Using the pullup HIGH draws around 130uA versus LOW it draws between 7 to 10uA!
That's the best solution with a normal reed switch.
But the best way is to use a "double" reed switch, with both normally opened and normally closed contacts. I use that connected between GND and pin 2 & 3 and set only the unconnected pin to high (so, with pullup). Current will flow only a very short time through the pullup while the node is waking up from sleep, then first thing I do is set connected input low. So nearly 100% of the time input is not connected and current through the reed switch is 0.
I've put a test node on my entrance door, it's been running for over 3 months on a CR2032 cell and has lost only 0.02V meaning it will last at least 2 years, maybe 3.
/**
* The MySensors Arduino library handles the wireless radio link and protocol
* between your home built sensors/actuators and HA controller of choice.
* The sensors forms a self healing radio network with optional repeaters. Each
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
* network topology allowing messages to be routed to nodes.
*
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
* Copyright (C) 2013-2015 Sensnology AB
* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
*******************************
*
* DESCRIPTION
*
* Interrupt driven binary switch example with dual interrupts
* Author: Patrick 'Anticimex' Fallberg
* Connect one button or door/window reed switch between
* digitial I/O pin 3 (BUTTON_PIN below) and GND and the other
* one in similar fashion on digital I/O pin 2.
* This example is designed to fit Arduino Nano/Pro Mini
*
* NCA78: Updated to work with one dual normally open/normally closed reed switch on both interrupt pins.
*/
// Enable debug prints
//#define MY_DEBUG
// Enable and select radio type attached
#define MY_RADIO_NRF24
#include <SPI.h>
#include <MyConfig.h>
#include <MySensors.h>
#include <SystemStatus.h>
#define SKETCH_NAME "NCA Door Sensor"
#define SKETCH_MAJOR_VER "0"
#define SKETCH_MINOR_VER "7"
#define PRIMARY_CHILD_ID 3
#define PRIMARY_BUTTON_PIN 2 // Arduino Digital I/O pin for button/reed switch
#define SECONDARY_BUTTON_PIN 3 // Arduino Digital I/O pin for button/reed switch
#if (PRIMARY_BUTTON_PIN < 2 || PRIMARY_BUTTON_PIN > 3)
#error PRIMARY_BUTTON_PIN must be either 2 or 3 for interrupts to work
#endif
#if (SECONDARY_BUTTON_PIN < 2 || SECONDARY_BUTTON_PIN > 3)
#error SECONDARY_BUTTON_PIN must be either 2 or 3 for interrupts to work
#endif
#if (PRIMARY_BUTTON_PIN == SECONDARY_BUTTON_PIN)
#error PRIMARY_BUTTON_PIN and BUTTON_PIN2 cannot be the same
#endif
#if (PRIMARY_CHILD_ID == SECONDARY_CHILD_ID)
#error PRIMARY_CHILD_ID and SECONDARY_CHILD_ID cannot be the same
#endif
#define MY_PARENT_NODE_ID 0
// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msg(PRIMARY_CHILD_ID, V_TRIPPED);
//MyMessage msg2(SECONDARY_CHILD_ID, V_TRIPPED);
// Parameters for VCC measurement
const int VccMin = 2000; // Minimum expected Vcc level, in Volts. At 2V the cell should be dead
const int VccMax = 2900; // Maximum expected Vcc level, in Volts.
SystemStatus vcc();
int LastBatteryPercent = 200; // so we are sure to send the battery level at first check
bool isEven = false; // to check+send battery level only for each open+close cycles
bool revertValue = false; // to change this put a jumper on D4/D7 and it is tested at startup
// This is the activated pin, on which the interrupt is set
byte connectedPin = PRIMARY_BUTTON_PIN;
byte connectedPinAtLastSending = 0; // Initialized at 0 so we will always send the first time
void setup()
{
// First thing to do: change clock prescaling to 8 to change from 8MHz to 1MHz
// of course not necessary if you already have updated fuses and bootloader...
#ifndef MY_DEBUG // only if we are not in debug mode, so we can keep the fast baudrate in debug
clock_prescale_set (clock_div_8);
#endif
}
void presentation() {
sleep(250); // sleep to let capacitor recharge a bit
// Send the sketch version information to the gateway and Controller
sendSketchInfo(SKETCH_NAME, SKETCH_MAJOR_VER "." SKETCH_MINOR_VER);
sleep(250); // sleep to let capacitor recharge a bit
// Register binary input sensor to sensor_node (they will be created as child devices)
present(PRIMARY_CHILD_ID, S_DOOR);
sleep(250); // sleep to let capacitor recharge a bit
}
// Loop will iterate on changes on the BUTTON_PINs
void loop()
{
// Short delay to allow buttons to properly settle
sleep(5);
deActivatePin(PRIMARY_BUTTON_PIN);
deActivatePin(SECONDARY_BUTTON_PIN);
// Check if the previously connected pin is now connected. We do that because it's the most likely to be unconnected now
// so it's the best way not to lose any current
byte newConnectedPin = GetNonConnectedPin();
if (checkPinIsConnected(connectedPin)) {
// If pin is still connected we set back the value to connected pin
newConnectedPin = connectedPin;
#ifdef MY_DEBUG
Serial.println("Connected pin is connected !");
#endif
}
connectedPin = newConnectedPin;
// If connected pin is different that the one during the last sending of status, we send again
#ifdef MY_DEBUG
Serial.print("Connected pin = ");
Serial.println(connectedPin);
Serial.print("New Connected pin = ");
Serial.println(newConnectedPin);
#endif
if (connectedPin != connectedPinAtLastSending) {
// Value has changed from last transmission, send the updated value
send(msg.set(connectedPin==PRIMARY_BUTTON_PIN ? (revertValue ? 0 : 1) : (revertValue ? 1 : 0)));
connectedPinAtLastSending = connectedPin;
isEven = !isEven;
}
if (isEven) { // send only every two changes for a full open + close cycle
int currentBatteryPercent = SystemStatus().getVCCPercent(VccMin, VccMax);
if (currentBatteryPercent != LastBatteryPercent) {
sleep(100); // sleep 100ms (+65ms wake up time) to let capacitor recharge a bit
LastBatteryPercent = currentBatteryPercent;
sendBatteryLevel(currentBatteryPercent);
}
}
#ifdef MY_DEBUG
Serial.print("Preparing to sleep, pin ");
Serial.println(GetNonConnectedPin());
wait(50);
#endif
// Activate the non connected pin before setting up interrupt
activatePin(GetNonConnectedPin());
// Sleep until something happens with the door sensor
sleep(GetNonConnectedPin()-2, CHANGE);
}
void activatePin(byte pin) {
// Set pin as input
pinMode(pin, INPUT);
// Activate internal pull up
digitalWrite(pin, HIGH);
}
void deActivatePin(byte pin) {
// Set back pin as output, low
pinMode(pin, OUTPUT);
digitalWrite(pin, LOW);
}
// Will check if pin is grounded (returns true) or not
boolean checkPinIsConnected(byte pin) {
activatePin(pin);
// Read value
byte valPin = digitalRead(pin);
deActivatePin(pin);
#ifdef MY_DEBUG
Serial.print("checkPinIsConnected pin = ");
Serial.print(pin);
Serial.print(", value = ");
Serial.println(valPin);
#endif
return valPin != HIGH;
}
// Returns the pin that is not connected
byte GetNonConnectedPin() {
return (connectedPin == PRIMARY_BUTTON_PIN) ? SECONDARY_BUTTON_PIN : PRIMARY_BUTTON_PIN;
}
https://www.aliexpress.com/item/20pcs-lot-3-pin-Reed-Switch-2-5X14MM-GLASS-Green-3-pin-Normally-Open-and-Normally/32507762756.html?spm=2114.13010608.0.0.4LJb9I
I put a 10cm wire instead, soldered at the beginning of the cut pcb antenna and ... it works really well !
) on the "motherboard" of my air quality sensor.
Micro (nano) ampere meter (double)
And something tells me it will probably go higher still.
