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Help about "Low memory available, stability problem may occur"

jigwa last edited by

sketch use 75% of program storage space.
Global variables use 77% of dynamic memory
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alowhum Plugin Developer last edited by

Should be fine. It's impossible to day for certain without looking at your code to see how much ram you will be using in the main loop.

Just test it. If it works, it works. If it still works next week, it really works.
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Starting my PC with a 3.3v arduino pro mini?
Development • • kiesel

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So, I finally got this done and it works just like I want it to. I used my initial schematics (plus radio, of course) and this code: /** * 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. * ******************************* * * REVISION HISTORY * Version 1.0: Yveaux * * DESCRIPTION * This sketch provides an example of how to implement a humidity/temperature * sensor using a Si7021 sensor. * * For more information, please visit: * http://www.mysensors.org/build/humiditySi7021 * */ // Enable debug prints #define MY_DEBUG #define MY_OWN_DEBUG #ifndef MY_OWN_DEBUG //disable serial in production compile, potentially saves few uA in sleep mode #define MY_DISABLED_SERIAL #endif // Enable and select radio type attached #define MY_RADIO_RFM69 #define MY_IS_RFM69HW #define MY_RFM69_NEW_DRIVER #define MY_NODE_ID 5 #define CHILD_ID_TXT 0 #define OUTPIN 8 #include <MySensors.h> #define SKETCH_NAME "media_pc_switch" #define SKETCH_MAJOR_VER "1" #define SKETCH_MINOR_VER "0" static bool metric = true; MyMessage msgTxt(CHILD_ID_TXT, V_TEXT); void presentation() { // Send the sketch version information to the gateway and Controller sendSketchInfo(SKETCH_NAME, SKETCH_MAJOR_VER "." SKETCH_MINOR_VER); present(CHILD_ID_TXT, S_INFO); } void setup() { pinMode(OUTPIN, OUTPUT); // digitalWrite(OUTPIN, LOW); #ifdef MY_OWN_DEBUG Serial.print("Starting: "); #endif send(msgTxt.set("Ready")); } void receive(const MyMessage &msg) { uint16_t ms; Serial.print("Received a message: "); Serial.println(msg.getString()); send(msgTxt.set(msg.getString())); ms = msg.getUInt(); if (ms > 10000 || ms < 1){return;} send(msgTxt.set("Received")); Serial.println("Pulling pin high"); digitalWrite(OUTPIN, HIGH); Serial.print("Waiting for "); Serial.println(ms); delay(ms); Serial.println("Switching off"); digitalWrite(OUTPIN, LOW); Serial.println("Delaying a few seconds to ignore message resends."); send(msgTxt.set("Sleeping")); delay(10000); send(msgTxt.set("Ready")); } Now I can use this sequence in HA to start my PC even when the power was cut: wzimmer_ms_start_htpc: alias: Use mysensors node 5 to start the mediapc in the living room sequence: repeat: sequence: #don't run if htpc already running - condition: not conditions: - condition: state entity_id: binary_sensor.htpc state: 'on' #send start signal to mysensors - service: notify.mysensors data: target: "media_pc_switch 5 0" message: 1000 #wait for timeout seconds whether a message has been received - wait_for_trigger: - platform: state entity_id: sensor.media_pc_switch_5_0 to: "Received" timeout: '00:00:04' until: # Did it work? - condition: state entity_id: sensor.media_pc_switch_5_0 state: Received Thank you, @cabat for your help and your patience!!!
Improvement Xiaomi smart kettle (I need help!)
Development • • vladimir

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@vladimir Hello, are there any kettles to buy, that have on/off function enabled via bluetooth? Xiaomis newer models maybe?
Senserbender gateway problem dtostrf.h
Development • sensebender gateway dtostrf.h • • Geelbuik

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@BearWithBeard thank you for the solution. I downgraded Arduino SAMD to 1.8.9. This solved the problem. Many thanks.
Handling NACKs
Development • • sundberg84

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@evb - yes, that is correct, here is a complete sketch with a GW (Nrf24 - ethernet) // Enable debug prints to serial monitor #define MY_DEBUG // Enable and select radio type attached #define MY_RADIO_NRF24 #define MY_RF24_PA_LEVEL RF24_PA_MAX // Enable gateway ethernet module type #define MY_GATEWAY_W5100 // Enable Soft SPI for NRF radio (note different radio wiring is required) // The W5100 ethernet module seems to have a hard time co-operate with // radio on the same spi bus. #if !defined(MY_W5100_SPI_EN) && !defined(ARDUINO_ARCH_SAMD) #define MY_SOFTSPI #define MY_SOFT_SPI_SCK_PIN 14 #define MY_SOFT_SPI_MISO_PIN 16 #define MY_SOFT_SPI_MOSI_PIN 15 #endif // When W5100 is connected we have to move CE/CSN pins for NRF radio #ifndef MY_RF24_CE_PIN #define MY_RF24_CE_PIN 5 #endif #ifndef MY_RF24_CS_PIN #define MY_RF24_CS_PIN 6 #endif #define MY_IP_ADDRESS 192,168,1,8 // If this is disabled, DHCP is used to retrieve address // Renewal period if using DHCP //#define MY_IP_RENEWAL_INTERVAL 60000 // The port to keep open on node server mode / or port to contact in client mode #define MY_PORT 5003 // Controller ip address. Enables client mode (default is "server" mode). // Also enable this if MY_USE_UDP is used and you want sensor data sent somewhere. //#define MY_CONTROLLER_IP_ADDRESS 192, 168, 178, 254 // The MAC address can be anything you want but should be unique on your network. // Newer boards have a MAC address printed on the underside of the PCB, which you can (optionally) use. // Note that most of the Ardunio examples use "DEAD BEEF FEED" for the MAC address. #define MY_MAC_ADDRESS 0xDE, 0xAD, 0xBE, 0xEF, 0x01, 0x08 //AF-A0-F2-15-3B-1C // Set blinking period #define MY_DEFAULT_LED_BLINK_PERIOD 300 // Enable inclusion mode //#define MY_INCLUSION_MODE_FEATURE // Enable Inclusion mode button on gateway //#define MY_INCLUSION_BUTTON_FEATURE // Set inclusion mode duration (in seconds) //#define MY_INCLUSION_MODE_DURATION 60 // Digital pin used for inclusion mode button //#define MY_INCLUSION_MODE_BUTTON_PIN 3 // Uncomment to override default HW configurations #define MY_DEFAULT_ERR_LED_PIN 7 // Error led pin #define MY_DEFAULT_RX_LED_PIN 9 // Receive led pin #define MY_DEFAULT_TX_LED_PIN 8 // the PCB, on board LED #define MY_INDICATION_HANDLER static uint32_t txOK = 0; static uint32_t txERR = 0; #define REPORT_INTERVAL 300000 // Report every 5 minutes #define CHILD_ID_TX_OK 0 #define CHILD_ID_TX_ERR 1 #include <SPI.h> #if defined(MY_USE_UDP) #include <EthernetUdp.h> #endif #include <Ethernet.h> #include <MySensors.h> MyMessage txOKmsg(CHILD_ID_TX_OK, V_CUSTOM); MyMessage txERRmsg(CHILD_ID_TX_ERR, V_CUSTOM); void indication(indication_t ind) { switch (ind) { case INDICATION_TX: txOK++; break; case INDICATION_ERR_TX: txERR++; break; } } void presentation() { //Send the sensor node sketch version information to the gateway sendSketchInfo("Gateway #1", "1.0"); present(CHILD_ID_TX_OK, S_CUSTOM); present(CHILD_ID_TX_ERR, S_CUSTOM); } void setup() { } void loop() { static unsigned long last_send = 0; if (millis() - last_send > REPORT_INTERVAL) { send(txOKmsg.set(txOK)); send(txERRmsg.set(txERR)); last_send = millis(); } } In Home Assistant you need to create a sensor that breaks down the incrementing number to each intervall you want. I use a utility_meter. utility_meter: hourly_ok_gw: source: sensor.gateway_1_0_0 cycle: hourly hourly_err_gw: source: sensor.gateway_1_0_1 cycle: hourly This sensors will be sent to Grafana each hour just like any other sensor and you can create a graph there:
Specific register setting fo NRF24 with PA-LNA
Development • • cabat

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@skywatch I am using this module and like this
An LCD node is polling the controller (Home Assistant) to get statuses of other nodes, a HOWTO.
Development • • evb

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MYSBootloader 1.3.0-beta.3
Development • • tekka

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@cabat said in MYSBootloader 1.3.0-beta.3: @iguaan Try to set MY_RF24_PA_LEVEL to RF24_PA_MIN on gateway then use NRF24L01+PA+LNA module - in my case the OTA begin work perfect! Well finally got time to try it out and it worked like a charm, thank you! Also no problem with a node that is about 1,5m away from GW. LOW also worked, but OTA was slow.

Help about "Low memory available, stability problem may occur"

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Help about "Low memory available, stability problem may occur"

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Starting my PC with a 3.3v arduino pro mini? Development • • kiesel

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Development • • vladimir

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Development • sensebender gateway dtostrf.h • • Geelbuik

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Development • • cabat

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