esp-idf/examples/peripherals/i2c/i2c_tools/example_test.py

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from __future__ import print_function
import ttfw_idf
EXPECT_TIMEOUT = 20
@ttfw_idf.idf_example_test(env_tag='Example_I2C_CCS811_SENSOR')
def test_i2ctools_example(env, extra_data):
# Get device under test, flash and start example. "i2ctool" must be defined in EnvConfig
dut = env.get_dut('i2ctools', 'examples/peripherals/i2c/i2c_tools', dut_class=ttfw_idf.ESP32DUT)
dut.start_app()
dut.expect('i2c-tools>', timeout=EXPECT_TIMEOUT)
# Get i2c address
dut.write('i2cdetect')
dut.expect('5b', timeout=EXPECT_TIMEOUT)
# Get chip ID
dut.write('i2cget -c 0x5b -r 0x20 -l 1')
dut.expect('0x81', timeout=EXPECT_TIMEOUT)
# Reset sensor
dut.write('i2cset -c 0x5b -r 0xFF 0x11 0xE5 0x72 0x8A')
dut.expect('OK', timeout=EXPECT_TIMEOUT)
# Get status
dut.write('i2cget -c 0x5b -r 0x00 -l 1')
dut.expect_any('0x10', timeout=EXPECT_TIMEOUT)
# Change work mode
dut.write('i2cset -c 0x5b -r 0xF4')
dut.expect('OK', timeout=EXPECT_TIMEOUT)
dut.write('i2cset -c 0x5b -r 0x01 0x10')
dut.expect('OK', timeout=EXPECT_TIMEOUT)
# Get new status
dut.write('i2cget -c 0x5b -r 0x00 -l 1')
dut.expect_any('0x98', '0x90', timeout=EXPECT_TIMEOUT)
if __name__ == '__main__':
test_i2ctools_example()