hi
Can module sx1278 also convert spi to Lora protocol (With header and data section and .... ) or is it just a transmitter and receiver in Lora network?
@thom4s said in [SOLVED] STM32F103C8T6 bluepill clone - RFM69HW SPI port 1 and ILI9341 SPI port 2 not working together:
o myself. Problem were in wrong definition of IRQ pin in sketch. But, as I found out STM32F103C8T6 has SPI 1 running on 72MHz (for SPI max 72/2 = 36MHz) and SPI 2 36MHz (for SPI max 36/2 = 18MHz) so it were a stupid idea to wire TFT display to SPI 2 port which is slower than SPI 1 with RFM69HW which doesnt need so fast SPI. Therefore I switched radio to SPI-2 and TFT display to faster SPI-1.
Radio SPI-2 and TFT ILI9341 SPI-1 wiring
I'm having the same problem with NRF24L01 + ILI9341.
TFT is on the SPI2 , its working but NRF24L01 on SPI1 doesnt work the moment i call tft.begin.
Its not hardware related. something is wrong when i initialize the spi in the Adafruit_ILI9341_STM::begin
Any thoughts?
hi, i'm making something similar to yours, i know a lot of time has elapsed, but i'll input my knowledge. For your problem it has to do with how the data you are collecting is saved and the configuration for taking measurements you are using.
You probably are using a pull measurement, instead of constant measurement. So the device will give you the data saved in register, before taking a new measurement. For example if you take a measure every 1hour, without turning off, it will give you the measurement of the preview hour each time you request for data. This is common in a lot of systems with registers.
So your problem may be that when you turn on the device, there is garbage on the register. Thats why you have to do 2 measurements to get the actual value.
@maddhin Any version 2 sketch with HTU21D should work as slim node is atmgea328 based. I use adafruit lib for mine and it works well. To conserve battery energy follow all the steps on the battery power page in here and send data as infrequently as you can for your needs.
here is the code I use to test with - you can safely remove all the "force n updates" to reduce memory use ( I always do). It also only send if the temp or hum has changed since last reading to further reduce battery consumption....
/**
* 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: Andrew Sutcliffe
*
* DESCRIPTION
* This sketch provides an example of how to implement a humidity/temperature
* sensor using a HTU21DF Sensor.
*
* For more information, please visit:
* http://www.mysensors.org/build/humidity
*
* Connect Vin to 3-5VDC
* Connect GND to ground
* Connect SCL to I2C clock pin (A5 on UNO)
* Connect SDA to I2C data pin (A4 on UNO)
*
*/
// Enable debug prints
#define MY_DEBUG
// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
//#define MY_RS485
#include <MySensors.h>
#include <Wire.h>
#include "Adafruit_HTU21DF.h"
Adafruit_HTU21DF htu = Adafruit_HTU21DF();
// Set this offset if the sensor has a permanent small offset to the real temperatures
#define SENSOR_TEMP_OFFSET 0
// Sleep time between sensor updates (in milliseconds)
static const uint64_t UPDATE_INTERVAL = 15*60000;
// Force sending an update of the temperature after n sensor reads, so a controller showing the
// timestamp of the last update doesn't show something like 3 hours in the unlikely case, that
// the value didn't change since;
// i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms]
static const uint8_t FORCE_UPDATE_N_READS = 10;
#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
float lastTemp;
float lastHum;
uint8_t nNoUpdatesTemp;
uint8_t nNoUpdatesHum;
bool metric = true;
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
void presentation()
{
// Send the sketch version information to the gateway
sendSketchInfo("HTU21DF-TemperatureAndHumidity", "1.0");
// Register all sensors to gw (they will be created as child devices)
present(CHILD_ID_HUM, S_HUM);
present(CHILD_ID_TEMP, S_TEMP);
}
void setup()
{
Serial.begin(9600);
Serial.println("HTU21D-F test");
if (!htu.begin()) {
Serial.println("Couldn't find sensor!");
while (1);
}
}
void loop(){
// Get temperature from HTU21DF library
float temperature = (htu.readTemperature());
if (temperature != lastTemp || nNoUpdatesTemp == FORCE_UPDATE_N_READS) {
// Only send temperature if it changed since the last measurement or if we didn't send an update for n times
lastTemp = temperature;
// Reset no updates counter
nNoUpdatesTemp = 0;
temperature += SENSOR_TEMP_OFFSET;
send(msgTemp.set(temperature, 1));
#ifdef MY_DEBUG
Serial.print("T: ");
Serial.println(temperature);
#endif
}
else {
// Increase no update counter if the temperature stayed the same
nNoUpdatesTemp++;
}
// Get humidity from HTU21DF library
float humidity = (htu.readHumidity());
if (humidity != lastHum || nNoUpdatesHum == FORCE_UPDATE_N_READS) {
// Only send humidity if it changed since the last measurement or if we didn't send an update for n times
lastHum = humidity;
// Reset no updates counter
nNoUpdatesHum = 0;
send(msgHum.set(humidity, 1));
#ifdef MY_DEBUG
Serial.print("H: ");
Serial.println(humidity);
#endif
}
else {
// Increase no update counter if the humidity stayed the same
nNoUpdatesHum++;
}
// Sleep for a while to save energy
sleep(UPDATE_INTERVAL);
}
Hope it helps you get up and running.
Oh boys... a lot of information here.
Thanks so much... but I've already place the pcb order... I have make an order for 10 pieces.
Bun in the mean time I'll experiment and modify the schema thanks to you all
Anyway I have placed there this capacitor ... I hope will be ok for this time.
Thanks so much for all information
Denis
