bonsoir
Le lundi 25 juillet 2022 à 08:39:04 UTC+2, [email protected] a écrit :
> Hi! When connected to the Arduino Uno via spi, the readings of the ADS1220
> sensor from the CJMCU are read correctly. When connecting the sensor to the
> d5..d8 wemos d1 mini (using pinout), there is no connection with the sensor
> (or the sensor fails). I am using d0 as drdy. I use power from a USB
> computer for wemos. The sensor is connected by five wires d5...d8 and d0. I
> ask for help to provide a fragment of the wemos d1 mini v3.0.0 spi setup
> and a connection diagram.
>
> Here's my sketch. The sensor works correctly only with arduino uno. When
> working with the wemos d1 mini board, it constantly restarts, and the
> sensor is not initialized. I use only five wires to connect the controller
> and the sensor. I think that the problem is in the settings of the SPI
> interface, since the pin numbers of Uno and Wemos do not match. Please help
> me figure out how to configure the Wemos d1 mini SPI interface.
>
> **************************************************************************
>
>
> */#include <ADS1220_WE.h>#include <SPI.h>**/* *
> UNO Wemos d1 mini
> #define SPI_CLK D13 14
> #define SPI_MISO D12 12
> #define SPI_MOSI D11 13
> */
> // for Wemos d1 mini
> #define ADS1220_CS_PIN D8 // 15 chip select pin
> #define ADS1220_DRDY_PIN D0 // 16 data ready pin
>
> // for UNO
> //#define ADS1220_CS_PIN 7 // chip select pin
> //#define ADS1220_DRDY_PIN 6 // data ready pin
>
> /* Create your ADS1220 object
>
> */ADS1220_WE ads = ADS1220_WE(ADS1220_CS_PIN, ADS1220_DRDY_PIN);*
>
> void setup(){
>
> Serial.begin(115200);
> pinMode(ADS1220_CS_PIN, OUTPUT); //On the ESP8266 in normal SPI mode we
> need to decide on SS and set it to output.
> digitalWrite(ADS1220_CS_PIN, HIGH); //deselect SPI device
> SPI.begin();
> SPI.setClockDivider(SPI_CLOCK_DIV128);
> Serial.print("ADS1220_CS_PIN - "); Serial.println(ADS1220_CS_PIN);
> Serial.print("ADS1220_DRDY_PIN - "); Serial.println(ADS1220_DRDY_PIN);
> Serial.print("D5 - "); Serial.println(D5);
> Serial.print("D6 - "); Serial.println(D6);
> Serial.print("D7 - "); Serial.println(D7);
> delay(1000);
> if(!ads.init()){
> Serial.println("ADS1220 is not connected!");
> while(1);
> }
> }
>
> void loop(){
> float result = 0.0;
> ads.setCompareChannels(ADS1220_MUX_0_1);
> delay(100);
> result = ads.getVoltage_mV();
> delay(200);
> Serial.print("AIN0 vs. AIN1 [mV]: ");
> Serial.println(result);
> delay(600);
> }
>
>
>
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