Example #1
0
import babel_out
import time
from machine import I2C
#id, scl, sda, freq
i2c = I2C(id=-1, scl=26, sda=27,
          freq=100000)  # create I2C peripheral at frequency of 400kHz
# depending on the port, extra parameters may be required
# to select the peripheral and/or pins to use

read_msb_addr = 0x73 >> 1
read_lsb_addr = 0x71 >> 1
write_addr = 0x70 >> 1
init_write = 0x06

i2c.writeto(write_addr, bytearray([init_write]))  # initialize the dumb thing

lsb = i2c.readfrom(read_lsb_addr,
                   1)  # read 4 bytes from slave with 7-bit address 42
msb = i2c.readfrom(read_msb_addr,
                   1)  # read 4 bytes from slave with 7-bit address 42
i2c.deinit()

value = msb[0] << 1 | lsb[0]

babel_out.babel_strstore(str(round(value, 3)) + "Lumens")
Example #2
0
import babel_out
import time
from machine import Pin
import time
from machine import I2C
i2c_addr = 0x40
#id, scl, sda, freq
i2c = I2C(id=-1, scl=27, sda=26,
          freq=100000)  # create I2C peripheral at frequency of 400kH

i2c.writeto(i2c_addr, bytearray([0x00, 0x39,
                                 0x9F]))  # initialize the dumb thing

i2c.writeto(i2c_addr, bytearray([0x05, 4096 >> 8,
                                 4096 & 0xFF]))  # initialize the dumb thing
i2c.writeto(i2c_addr, bytearray([0x04]))  # initialize the dumb thing
time.sleep(.05)
raw_current = i2c.readfrom(i2c_addr,
                           2)  # read 4 bytes from slave with 7-bit address 42
ma_current = raw_current[0] << 8 | raw_current[1]
babel_out.babel_strstore(str(round(ma_current / 10.0, 3)) + "mA")
i2c.deinit()
Example #3
0
import babel_out
import time
# create an output pin on pin #0

adc_val = babel_out.babel_get_adc()
temp = (adc_val - 500) / 10.
babel_out.babel_strstore(str(round(temp, 3)) + "C")
time.sleep(.1)
Example #4
0
import babel_out
import time
from machine import Pin


def do_data(cycles):
    clk.value(0)
    prev_value = 0
    while data.value() != 0 or prev_value != 1:
        prev_value = data.value()
    result = 0
    for i in range(cycles):
        clk.value(1)
        clk.value(0)
        if i < 24:
            result = (result | (data.value() << (23 - i)))
    time.sleep(.01)
    return result


data = Pin(26, Pin.IN)
clk = Pin(27, Pin.OUT)

r1 = do_data(26)
r1 = 1.0 * r1 / (1 << 24 - 1) * 3.26 / 2
r2 = do_data(25)
clk.value(1)
babel_out.babel_strstore(str(round(r2, 5)) + " adc2")