One inject writes data to the i2c address and register of the mpu6050 device to configure it for reading.
The top inject button then can request 14 bytes from the same i2c address and formats the response data for display to the debugger.
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Read an i2c-based mpu6050 accelerometer on a raspberry pi
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| [{"id":"12867341.ed798d","type":"nodebot","name":"","username":"","password":"","boardType":"raspi-io","serialportName":"","connectionType":"local","mqttServer":"","pubTopic":"","subTopic":"","tcpHost":"","tcpPort":"","sparkId":"","sparkToken":"","beanId":"","impId":""},{"id":"a2a45691.5d5ba8","type":"gpio out","name":"","state":"I2C_READ_REQUEST","pin":"","i2cDelay":"0","i2cAddress":"104","i2cRegister":"59","outputs":1,"board":"12867341.ed798d","x":283,"y":694,"z":"fb26e0ad.04d92","wires":[["7058226d.8fa7dc"]]},{"id":"ed1b31d8.12e4d","type":"debug","name":"","active":true,"console":"false","complete":"false","x":500,"y":622,"z":"fb26e0ad.04d92","wires":[]},{"id":"7058226d.8fa7dc","type":"function","name":"process i2c","func":"var data = msg.payload;\nvar int16 = function(high, low) {\n var result = (high << 8) | low;\n // if highest bit is on, it is negative\n return result >> 15 ? ((result ^ 0xFFFF) + 1) * -1 : result;\n};\n\n\nmsg.payload = {\n accelerometer : {\n x: int16(data[0], data[1]),\n y: int16(data[2], data[3]),\n z: int16(data[4], data[5])\n },\n temperature : int16(data[6], data[7]),\n gyro : {\n x: int16(data[8], data[9]),\n y: int16(data[10], data[11]),\n z: int16(data[12], data[13])\n }\n};\n\nreturn msg;","outputs":1,"valid":true,"x":315,"y":548,"z":"fb26e0ad.04d92","wires":[["ed1b31d8.12e4d"]]},{"id":"970b8ad3.68f478","type":"inject","name":"","topic":"","payload":"14","payloadType":"string","repeat":"","crontab":"","once":false,"x":119,"y":552,"z":"fb26e0ad.04d92","wires":[["a2a45691.5d5ba8"]]},{"id":"7a2b3f6.f85d4c","type":"gpio out","name":"","state":"I2C_WRITE_REQUEST","pin":"","i2cDelay":"0","i2cAddress":"104","i2cRegister":"","outputs":0,"board":"12867341.ed798d","x":275,"y":790,"z":"fb26e0ad.04d92","wires":[]},{"id":"bd2a7e35.42d58","type":"inject","name":"","topic":"","payload":"","payloadType":"none","repeat":"","crontab":"","once":false,"x":90,"y":633,"z":"fb26e0ad.04d92","wires":[["c625f941.39da08"]]},{"id":"c625f941.39da08","type":"function","name":"i2c bytes","func":"msg.payload = [0x6B, 0x00];\nreturn msg;","outputs":1,"valid":true,"x":139,"y":709,"z":"fb26e0ad.04d92","wires":[["7a2b3f6.f85d4c"]]}] |
same here, nodebot missing which seems to be the i2c IO, see pic
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Dear,
Does anybody know where should be the problem with the error message:
Flows stopped due to missing node types.
nodebot
Thank you