2015-01-14 11:41:43 +00:00
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#!/usr/bin/env python
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2018-01-30 11:32:18 +05:30
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# Author: Henry Bruce <henry.bruce@intel.com>
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# Copyright (c) 2016 Intel Corporation.
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2015-01-14 11:41:43 +00:00
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#
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2019-05-09 09:47:11 -07:00
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# SPDX-License-Identifier: MIT
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2015-01-14 11:41:43 +00:00
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2018-01-30 11:32:18 +05:30
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# Example Usage: Read from MCP3004 ADC pin 0 in single ended mode
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2015-01-14 11:41:43 +00:00
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2018-01-30 11:32:18 +05:30
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import mraa
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import time
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2015-01-14 11:41:43 +00:00
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2018-01-30 11:32:18 +05:30
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# initialise SPI
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dev = mraa.Spi(0)
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2015-01-14 11:41:43 +00:00
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2018-01-30 11:32:18 +05:30
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# prepare data to send
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txbuf = bytearray(3)
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txbuf[0] = 0x01
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txbuf[1] = 0x80
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txbuf[2] = 0x00
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2015-01-14 11:41:43 +00:00
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2018-01-30 11:32:18 +05:30
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while True:
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# send data through SPI
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rxbuf = dev.write(txbuf)
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value = ((rxbuf[1] & 0x03) << 8) | rxbuf[2]
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print(value)
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time.sleep(0.5)
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