ESP8266 Community Forum

- Fri Mar 11, 2016 1:26 am #42880 Here you go

Code: Select all-- Config
local MISO = 5            --> GPIO14
local CLK = 6             --> GPIO12
local CS = 7              --> GPIO13
local duration = 3000     --> 3 seconds
local i = 0
local result = 0

-- Pin Initialization
gpio.mode(CS, gpio.OUTPUT)
gpio.mode(CLK, gpio.OUTPUT)
gpio.mode(MISO, gpio.INPUT)
gpio.write(CS,gpio.HIGH)

-- Function to read SPI
function readSPI()
    gpio.write(CS, gpio.LOW)      -->Activate the chip
    tmr.delay(1)                  -->1us Delay

    gpio.write(CLK, gpio.HIGH)    -->First bit is dummy, ignore it(refer MAX6675 datasheet)
    tmr.delay(2)
    gpio.write(CLK, gpio.LOW)
    tmr.delay(2)

    result = 0
   
   for i=15,1,-1
    do
      result = bit.lshift(result, 1)
      result = bit.bor(result ,(bit.band(gpio.read(MISO),0x01)))
      gpio.write(CLK, gpio.HIGH)   
      tmr.delay(2)
      gpio.write(CLK, gpio.LOW)
      tmr.delay(2)
    end
    if(bit.isset(result,2)) then
        print("Sensor not connected")
        gpio.write(CS, gpio.HIGH)
        do return end
    end
       
    gpio.write(CS, gpio.HIGH)
    print(bit.rshift(result,3)*0.25)

end

-- Create an interval
tmr.alarm(0, duration, 1, readSPI)


- Thu Aug 04, 2016 3:17 pm #52136 hi frends,
esp12 lua and mcp41100 pot. connection problem.
can ı help you?
spı connection error

- Wed Nov 02, 2016 10:20 pm #57570 Thank you for your post.
I'm connecting cc1101 with esp8266-12e and connect pins like your connect.
This is my code:
#include "ELECHOUSE_CC1101.h"

void setup()
{
Serial.begin(9600);
ELECHOUSE_cc1101.Init();
ELECHOUSE_cc1101.SetReceive();

}

byte RX_buffer[61]={0};
byte size,i,flag;

void loop()
{
Serial.println("Received packet");
if(ELECHOUSE_cc1101.CheckReceiveFlag())
{
Serial.println("Received packet");
size=ELECHOUSE_cc1101.ReceiveData(RX_buffer);
for(i=0;i<size;i++)
{
Serial.print(RX_buffer[i],DEC);
Serial.print(' ');
}
Serial.println("");
ELECHOUSE_cc1101.SetReceive();
}
}

I tried with Arduino Uno success, but on esp always happen reboot
fets Jan 8 2013,rst cause:2, boot mode:(1,6)
ets Jan 8 2013,rst cause:4, boot mode:(1,6)
wdt reset