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💬 Arduino Nano NRF24L01+ Shield

openhardware.io last edited by

https://www.openhardware.io/view/710/Arduino-Nano-NRF24L01-Shield
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NeverDie Hero Member last edited by

Here's a similar, related project for an Arduino Pro Mini: https://www.openhardware.io/view/480/Compact-nRF24L01-Pro-Mini-Bottom-Shield
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tiana last edited by

I also have project for mini.
The project have pads for battery, battery protection IC, LIPO charger USB for charging... battery voltage measurements....
But the project is not released yet, because high temperature during charging.
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@nagelc said in New Setup for Home Environment Monitoring – Using NRF24L01+, Arduino Pro Mini, and BME280: bme280 I read somewhere that the temperature sensor on the BME280 is sort of an afterthought. I did a few experiments comparing them to the DHT11/12/22 and found them only a little better. (Take this with a grain of salt, maybe you'll want to do you're own experiments.) I did do a lot of experiments with the DHT's and they really suck. +/-2°C Which turns out to mean +/-2°C offset (component variation) and +/-2°C measurement: +/-4°C from what the temperature actually is. My experience, yours may be better. Please post your experience with OTA. I haven't tried it on Arduino's but it's awesome on ESP8266. I hesitate with Arduino's because I had some erratic behaviour running Arduino's when pushing the memory limit. I, too, use the MQTT data transport to Home Assistant (HA) and I find that excellent. Getting data from HA is a bit tricky, but do-able. I have a flow meter and use HA to store the last read; meaning, if there is a power failure, HA sends the last read on Arduino boot. I don't use the EEPROM because that has a spec of 100,000 writes which the meter would do in about a year, thus, necessitating a new Arduino. I truly appreciate you sharing. Thanks! -OSD
💬 Dollhouse wireless node
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@pihome few months tops, I think.
Relay with ACS712
Hardware • relay nrf24l01+ • • Dheeraj

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@Shivanand-Chanderbally I recently finished a node using the acs712 and found it to be very sensitive to nearby magnetic fields. It is best to have it as far away from these as you can.
Why You Should Encase Your Nodes
Hardware • nrf24l01+ weatherstation • • wergeld

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@TheoL No damage. Water went up about 7 feet on our lake but had another 11 feet to go to threaten our property. Biggest flooding was to the south of us. We did have a fun time hiding out in our laundry room during tornado flying up to the east of us. Also, I do not think the radio is dead - hooked it by accident to my Uno testing board and it was transmitting just fine. Love these things - very tough.
DevDuino v2.2 with EEPROM
Hardware • nrf24l01+ rf24 devduino • • icebob

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Here is the code works with devDuino v2.2 It shows how all of the sensors on board (via com port) and also makes it possible to (expect) to download the firmware over the air. (for example through MYSController) /* This sketch is for a devDuino SN v2.2 with the support OTA http://www.seeedstudio.com/wiki/DevDuino_Sensor_Node_V2.2_(ATmega_328) and MySensors 1.5 For testing all the equipment, press the button D4 when a voltage is applied. This sketch is a modification of code written Version 1.3 - Thomas Bowman Mørch for sensor Sensebender Micro http://www.mysensors.org/hardware/micro modified 18 December 2015 by greengo */ #include <MySensor.h> #include <SPI.h> #include "utility/SPIFlash.h" #include <EEPROM.h> #include <sha204_lib_return_codes.h> #include <sha204_library.h> // Define a static node address, remove if you want auto address assignment //#define NODE_ADDRESS 2 #define RELEASE "0.01" #define TEST_PIN 4 // Button D4 #define TEMP_SENSE_PIN A3 // Input pin for the Temp sensor MCP9700 #define LED_PIN 9 // LED #define ATSHA204_PIN A2 // ATSHA204A const int sha204Pin = ATSHA204_PIN; atsha204Class sha204(sha204Pin); SPIFlash flash(8, 0x1F65); MyTransportNRF24 transport(7, 6); MySensor gw(transport); // the setup function runs once when you press reset or power the board void setup() { // initialize digital pin 9 as an output. pinMode(LED_PIN, OUTPUT); Serial.begin(115200); Serial.print(F("devDuino V2.2")); Serial.println(RELEASE); Serial.flush(); // First check if we should boot into test mode pinMode(TEST_PIN,INPUT); digitalWrite(TEST_PIN, HIGH); // Enable pullup if (!digitalRead(TEST_PIN)) testMode(); // Make sure that ATSHA204 is not floating pinMode(ATSHA204_PIN, INPUT); digitalWrite(ATSHA204_PIN, HIGH); digitalWrite(LED_PIN, HIGH); #ifdef NODE_ADDRESS gw.begin(NULL, NODE_ADDRESS, false); #else gw.begin(NULL,AUTO,false); #endif digitalWrite(LED_PIN, LOW); Serial.flush(); Serial.println(F(" - Online!")); gw.sendSketchInfo("devDuino SN V2.2", RELEASE); } // the loop function runs over and over again forever void loop() { gw.process(); } /**************************************************** * * Verify all peripherals, and signal via the LED if any problems. * ****************************************************/ void testMode() { uint8_t rx_buffer[SHA204_RSP_SIZE_MAX]; uint8_t ret_code; byte tests = 0; digitalWrite(LED_PIN, HIGH); // Turn on LED. Serial.println(F(" - TestMode")); Serial.println(F("Testing peripherals!")); Serial.flush(); Serial.print(F("-> MCP9700 : ")); Serial.flush(); if (analogRead (TEMP_SENSE_PIN),HIGH ) { Serial.println(F("ok!")); tests ++; } else { Serial.println(F("failed!")); } Serial.flush(); Serial.print(F("-> Flash : ")); Serial.flush(); if (flash.initialize()) { Serial.println(F("ok!")); tests ++; } else { Serial.println(F("failed!")); } Serial.flush(); Serial.print(F("-> SHA204 : ")); ret_code = sha204.sha204c_wakeup(rx_buffer); Serial.flush(); if (ret_code != SHA204_SUCCESS) { Serial.print(F("Failed to wake device. Response: ")); Serial.println(ret_code, HEX); } Serial.flush(); if (ret_code == SHA204_SUCCESS) { ret_code = sha204.getSerialNumber(rx_buffer); if (ret_code != SHA204_SUCCESS) { Serial.print(F("Failed to obtain device serial number. Response: ")); Serial.println(ret_code, HEX); } else { Serial.print(F("Ok (serial : ")); for (int i=0; i<9; i++) { if (rx_buffer[i] < 0x10) { Serial.print('0'); // Because Serial.print does not 0-pad HEX } Serial.print(rx_buffer[i], HEX); } Serial.println(")"); tests ++; } } Serial.flush(); Serial.println(F("Test finished")); if (tests == 3) { Serial.println(F("Selftest ok!")); while (1) // Blink OK pattern! { digitalWrite(LED_PIN, HIGH); delay(200); digitalWrite(LED_PIN, LOW); delay(200); } } else { Serial.println(F("----> Selftest failed!")); while (1) // Blink FAILED pattern! Rappidly blinking.. { } } }
💬 Capacitive Soil Moisture Sensor
OpenHardware.io • mysensors nrf24l01+ atmega328p soil moisture capacitive soil moisture • • openhardware.io

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@Ron said in Capacitive Soil Moisture Sensor: @Puneit-Thukral Thanks. I am not quite sure, so correct me please if I am wrong, but I think I am already using the MiniCore bootloader with platformIO. Or do I need to configure to explicitly use the MiniCore bootloaders? Also I have set BOD to disabled as I read somewhere that no BOD can also save battery. hi I'm not sure, but I believe I'm already using the MiniCore bootloader with platformIO. Please tell me if I'm incorrect. Is it necessary to set the MiniCore bootloaders explicitly?
Ethernet gateway troubleshooting advice
Troubleshooting • gateway nrf24l01+ vera ethernet w5100 • • jkbrowne

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Sorry for the huge kick.. But I seem to have the same ethernet gateway as TS. His his wire diagram valid?
RFM73 experience
Hardware • nrf24l01+ rfm73 • • Yveaux

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FYI: RadioHead library 1.34 has some specific initialization code for RFM73 in the nRF24 driver (e.g. ACTIVATE command). See https://github.com/Yveaux/RadioHead/commit/f895ba933950681234d714fd7c3d3c18658b8ed5

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💬 Arduino Nano NRF24L01+ Shield

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New Setup for Home Environment Monitoring – Using NRF24L01+, Arduino Pro Mini, and BME280
My Project • mysensors nrf24l01+ home environment monitoring • • lostintheethes

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Hardware • relay nrf24l01+ • • Dheeraj

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Hardware • nrf24l01+ weatherstation • • wergeld

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Hardware • nrf24l01+ rf24 devduino • • icebob

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