gator_environment_v2_tests.js

// // CCS811 Address (0x5B  = 91)
// 
// // HARDWARE_ID register [0x20 = 32], read value [0x81 = 129]
// 
// // HARDWARE_VERSION register [0x21 = 33], read value [0x12 = 18]
// 
// // CCS811_STATUS register [0x00 = 0]
// 
// ////////// read value [17 = 0001 0001]
// 
// ////////// read value [152 = 1001 1000]<= DATA READY TO BE READ, SHOULD BE THIS
// 
// ////////// read value [144 = 1001 0000]<= NOT ready...
// 
// //
// 
// // ERROR_ID register [0xE0  = 224]
// 
// ////////// read value => 0x03 = CCS811 received an i2c read request that is invalid,
// 
// ///////////////////////////////////////////// CCS811 received an i2c write request that is invalid
// 
// ////////// read value => 0x00 = 0, <= SHOULD BE THIS
// 
// //
// 
// // SW_Reset register [0xFF = 255]
// 
// ////////// write => {0x11, 0xE5, 0x72, 0x8A },
// 
// ////////// or {4581, 29322 | 300249738 } Big-Endian,
// 
// ////////// or {58641, 35442 | 2322785553 } Little-Endian
// 
// //
// 
// // APP_START [0xF4 = 244]
// 
// ////////// MEAS_MODE register [0x01= 1]
// 
// ////////// write value => 0x10 = 0001 0000, 1 for every second
// 
// //
// 
// // ====================
// 
// //
// 
// // BME280 Address (0x77 = 119)
// 
// ////////// 0x60= 96
serial.redirectToUSB()
gatorEnvironment.beginEnvironment()
basic.pause(1000)
serial.writeLine("")
serial.writeLine("")
serial.writeString("CHECK HW ID (Register [0X20 = 32] , Value [0x81 = 129]) = ")
pins.i2cWriteNumber(
91,
32,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
serial.writeString("CHECK ERROR_ID (Register [0XE0 = 224], Value =[0x00 = 0]) = ")
pins.i2cWriteNumber(
91,
224,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
basic.pause(3000)
serial.writeString("CCS811 SW_RESET (0xFF | 255), {0x11, 0xE5, 0x72, 0x8A} ")
basic.pause(100)
let bufr = pins.createBuffer(5)
let val = 255
bufr.setNumber(NumberFormat.UInt8BE, 0, val)
val = 17
bufr.setNumber(NumberFormat.UInt8BE, 1, val)
val = 229
bufr.setNumber(NumberFormat.UInt8BE, 2, val)
val = 114
bufr.setNumber(NumberFormat.UInt8BE, 3, val)
val = 138
bufr.setNumber(NumberFormat.UInt8BE, 4, val)
pins.i2cWriteBuffer(
    91,
    bufr,
    false
)
basic.pause(3000)
serial.writeLine("")
serial.writeString("CHECK CCS811 STATUS (Register [0x00 = 0], Value [152 = 1001 1000]) = ")
pins.i2cWriteNumber(
91,
0,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
serial.writeString("CHECK ERROR_ID (Register [0XE0 = 224], Value =[0x00 = 0]) = ")
pins.i2cWriteNumber(
91,
224,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
basic.pause(5000)
serial.writeString("APP_START (0xF4 | 244)")
pins.i2cWriteNumber(
91,
244,
NumberFormat.UInt8BE,
false
)
serial.writeLine("")
basic.pause(100)
serial.writeString("CHECK CCS811 STATUS (Register [0x00 = 0], Value [152 = 1001 1000]) = ")
pins.i2cWriteNumber(
91,
0,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
serial.writeString("CHECK ERROR_ID (Register [0XE0 = 224], Value =[0x00 = 0]) = ")
pins.i2cWriteNumber(
91,
224,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
basic.pause(1000)
serial.writeString("SET MEAS_MODE (0x01 | 1), MEASURE 1 SECOND (0x10 | 16)")
basic.pause(100)
let bufr2 = pins.createBuffer(2)
let val2 = 1
bufr2.setNumber(NumberFormat.UInt8BE, 0, val2)
val2 = 16
bufr2.setNumber(NumberFormat.UInt8BE, 1, val2)
pins.i2cWriteBuffer(
    91,
    bufr2,
    false
)
serial.writeLine("")
basic.pause(1000)
serial.writeString("CHECK CCS811 STATUS (Register [0x00 = 0], Value [152 = 1001 1000]) = ")
pins.i2cWriteNumber(
91,
0,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
serial.writeString("CHECK ERROR_ID (Register [0XE0 = 224], Value =[0x00 = 0]) = ")
pins.i2cWriteNumber(
91,
224,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
serial.writeString("CHECK MEAS_MODE (Register [0x01 = 1], Value [0x10 | 16]) = ")
pins.i2cWriteNumber(
91,
1,
NumberFormat.UInt8BE,
false
)
basic.pause(100)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
serial.writeString("CHECK CCS811 STATUS (Register [0x00 = 0], Value [152 = 1001 1000]) = ")
pins.i2cWriteNumber(
91,
0,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
serial.writeString("CHECK ERROR_ID (Register [0XE0 = 224], Value =[0x00 = 0]) = ")
pins.i2cWriteNumber(
91,
224,
NumberFormat.UInt8BE,
false
)
serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
serial.writeLine("")
basic.pause(1000)
serial.writeLine("MEASURING")
basic.pause(1000)
serial.writeLine(".")
basic.pause(1000)
serial.writeLine(".")
basic.pause(1000)
serial.writeLine(".")
basic.forever(function () {
    serial.writeString("CHECK CCS811 STATUS (Register [0x00 = 0], Value [152 = 1001 1000]) = ")
    pins.i2cWriteNumber(
    91,
    0,
    NumberFormat.UInt8BE,
    false
    )
    serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
    serial.writeLine("")
    basic.pause(1000)
    serial.writeString("CHECK ERROR_ID (Register [0XE0 = 224], Value =[0x00 = 0]) = ")
    pins.i2cWriteNumber(
    91,
    224,
    NumberFormat.UInt8BE,
    false
    )
    serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
    serial.writeLine("")
    basic.pause(1000)
    serial.writeString("READ SENSOR DATA = ")
    pins.i2cWriteNumber(
    91,
    2,
    NumberFormat.UInt8BE,
    false
    )
    serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt32BE, false)))
    serial.writeLine("")
    basic.pause(1000)
    serial.writeString("CHECK CCS811 STATUS (Register [0x00 = 0], Value [152 = 1001 1000]) = ")
    pins.i2cWriteNumber(
    91,
    0,
    NumberFormat.UInt8BE,
    false
    )
    serial.writeString("" + (pins.i2cReadNumber(91, NumberFormat.UInt8BE, false)))
    serial.writeLine("")
    serial.writeString("" + (gatorEnvironment.getMeasurement(measurementType.eCO2)))
    serial.writeString(",")
    serial.writeString("" + (gatorEnvironment.getMeasurement(measurementType.TVOC)))
    serial.writeLine("")
    basic.pause(2000)
})

There's some sort of I2C read/write issue when the updated MakeCode V2 with CODAL in the gator:environment when it starts up possibly due to a timing issue or the way the values are handled with the CCS811 registers for micro:bit V2 development board.

A hack and workaround using the extension is to manually execute I2C read/write to the CCS811 registers. MakeCode code block for I2C is limiting so variables and buffers through MakeCode's Javascript is used to write multiple values to their respective registers.