Uploaded August 2025 | Updated September 2026, 2 days ago
Detecting and discriminating between rain, fresh and salt water …
↓↓↓ Complete description, time index and links below ↓↓↓
In the previous video we successfully implemented the battery voltage monitoring, achieving an accuracy of ±10% (link below). We have still two unused inputs on our ADC. So let’s use one to detect water intrusions.
First we talk about the specific resistivity of different water types. After a short experiment we come up with a circuit to detect different kinds of water with our ADC. Finally we write some code to distinguish between rain, fresh and salt water.
00:00 Intro – implementing a water intrusion detection
00:40 Water – has a wide range of specific resistivity
04:26 Experiment – rain, tap and salt(y) water resistance
07:17 Circuit 1 – basically a voltage divider with an extra
09:34 Circuit 2 – buffer capacitor for the ADC input
12:19 Circuit 3 – expected readings with the ADC
13:42 Breadboard – sensor, two resistors and a capacitor
14:51 Code 1 – reading raw ADC values of the sensor
15:19 Test 1 – raw ADC values dray and with tap water
16:19 Code 2 – discriminating rain, fresh and salt water
21:17 Test 2 – with two resistors and tap water
22:37 Wrap-up – next up is the power supply, bye
Full Fly-by-Wire Electric Outboard youtube.com/playlist?list=PLwq-2MnM58FKvpYgFXgNCjlKo14L0KI16
Full Fly-by-Wire Electric Outboard (9): Voltage Measurement Circuit & Code youtu.be/TAGQqRPxVXc
Full Fly-by-Wire Electric Outboard (11): Power Supply Circuit (EMC Compliant) youtu.be/5_Q-G0tgG1o
Capacitive Liquid Level Sensing (1): Sensor Basics youtu.be/Jjcym2g2ruk
Capacitive Liquid Level Sensing (2): Measuring Capacity (1) youtu.be/h6ErXsIQWDU
Capacitive Liquid Level Sensing (3): Measuring Capacity (2) youtu.be/v-1B_c-3KQ4
Capacitive Liquid Level Sensing (4): Analog to Digital (1) youtu.be/6-uRvu_0WW8
Capacitive Liquid Level Sensing (5): Analog to Digital (2) youtu.be/BoutyoQyOQI
Capacitive Liquid Level Sensing (6): Analog to Digital (3) youtu.be/g8fjN2WKGN4
Capacitive Liquid Level Sensing (7): Reference Sensor (1) youtu.be/XDtQKoT6Zyo
Capacitive Liquid Level Sensing (8): Reference Sensor (2) youtu.be/pKZHFjDShpM
Capacitive Liquid Level Sensing (9): Dielectric Constant Not Always Matters youtu.be/iQqXeQJgLbc
Capacitive Liquid Level Sensing (10): Errata, Miscellaneous, The End youtu.be/TdAnryA6h-M
MCP300X/MCP320X Family ADCs and Arduino MCUs – The Basics youtu.be/L4hx470XRtI
MCP300X/MCP320X Family ADCs and Arduino MCUs – The Details youtu.be/uI8IOceJs78
#flybywire #electricoutboard #haswing #trollingmotor #outboardmotor #outboard #robertssmorgasbord
Detecting and discriminating between rain, fresh and salt water …
↓↓↓ Complete description, time index and links below ↓↓↓
In the previous video we successfully implemented the battery voltage monitoring, achieving an accuracy of ±10% (link below). We have still two unused inputs on our ADC. So let’s use one to detect water intrusions.
First we talk about the specific resistivity of different water types. After a short experiment we come up with a circuit to detect different kinds of water with our ADC. Finally we write some code to distinguish between rain, fresh and salt water.
00:00 Intro – implementing a water intrusion detection
00:40 Water – has a wide range of specific resistivity
04:26 Experiment – rain, tap and salt(y) water resistance
07:17 Circuit 1 – basically a voltage divider with an extra
09:34 Circuit 2 – buffer capacitor for the ADC input
12:19 Circuit 3 – expected readings with the ADC
13:42 Breadboard – sensor, two resistors and a capacitor
14:51 Code 1 – reading raw ADC values of the sensor
15:19 Test 1 – raw ADC values dray and with tap water
16:19 Code 2 – discriminating rain, fresh and salt water
21:17 Test 2 – with two resistors and tap water
22:37 Wrap-up – next up is the power supply, bye
Full Fly-by-Wire Electric Outboard youtube.com/playlist?list=PLwq-2MnM58FKvpYgFXgNCjlKo14L0KI16
Full Fly-by-Wire Electric Outboard (9): Voltage Measurement Circuit & Code youtu.be/TAGQqRPxVXc
Full Fly-by-Wire Electric Outboard (11): Power Supply Circuit (EMC Compliant) youtu.be/5_Q-G0tgG1o
Capacitive Liquid Level Sensing (1): Sensor Basics youtu.be/Jjcym2g2ruk
Capacitive Liquid Level Sensing (2): Measuring Capacity (1) youtu.be/h6ErXsIQWDU
Capacitive Liquid Level Sensing (3): Measuring Capacity (2) youtu.be/v-1B_c-3KQ4
Capacitive Liquid Level Sensing (4): Analog to Digital (1) youtu.be/6-uRvu_0WW8
Capacitive Liquid Level Sensing (5): Analog to Digital (2) youtu.be/BoutyoQyOQI
Capacitive Liquid Level Sensing (6): Analog to Digital (3) youtu.be/g8fjN2WKGN4
Capacitive Liquid Level Sensing (7): Reference Sensor (1) youtu.be/XDtQKoT6Zyo
Capacitive Liquid Level Sensing (8): Reference Sensor (2) youtu.be/pKZHFjDShpM
Capacitive Liquid Level Sensing (9): Dielectric Constant Not Always Matters youtu.be/iQqXeQJgLbc
Capacitive Liquid Level Sensing (10): Errata, Miscellaneous, The End youtu.be/TdAnryA6h-M
MCP300X/MCP320X Family ADCs and Arduino MCUs – The Basics youtu.be/L4hx470XRtI
MCP300X/MCP320X Family ADCs and Arduino MCUs – The Details youtu.be/uI8IOceJs78
#flybywire #electricoutboard #haswing #trollingmotor #outboardmotor #outboard #robertssmorgasbord
