Signal K

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Signal K

Signal K is an ecosystem for free and open source universal marine data exchange and software.

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nmea2000

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sensesp

mgrouch - Announcing availability of Bareboat N...

Announcing availability of Bareboat Necessities Sensors Hub 1.0.1. It allows connecting various i2c and 1-wire boat sensors to a single m5stack atomS3-lite esp32. No soldering required. Sensors are recognized automatically. Firmware is precompiled and loaded using simple script from BBN OS. The project home page with the documentation and the source code: https://github.com/bareboat-necessities/bbn_esp32_sensors_hub...

blohminator - I have installed a Lidar sensor a...

I have installed a Lidar sensor at the top of our waste water tank to check the fill level and can read the fill level on the tank display. Now I want to send the data to the server via Wifi and SignalK. As I'm not an expert, I wanted to ask if someone could add the code for me. I use an ESP32 WROOM 32. Thanks in advance.

motamman - When using an I2C multiplexor, how d...

When using an I2C multiplexor, how do the pull up resistors affect the board? The microcontroller? I am connecting 8 INA260s to a TCA9548A multiplexor to an ESP32-C6. Individually, the INA260s work as expected but when all installed, they are a bit flaky. Is there a rule of thumb for calculating the total pull-up resistance threshold for a system?...

motamman - I posted this on the Arduino group b...

I posted this I2C MPU9250/imu Q on the Arduino group, but maybe some folks here might be able to help: I have a device that has the following components: 1. Beetle esp32-c6 (programmatically set SDA to GPIO 20, SCL to 19. RX to 21 and TX to 22.) 2. Beitain BE880 GPS connected to RX and TX pins. I am NOT using the internal compass. (TinyGPSPlus library: https://github.com/mikalhart/TinyGPSPlus)...

big__col - Me Halmet and SH-WG are both trying ...

Me Halmet and SH-WG are both trying to connect to my Venus instance of SignalK, and not the usual instance. How can i stop this happening please??

mgrouch - I designed a boat heave sensor. It us...

I designed a boat heave sensor. It uses accelerometer and gyroscope and runs on esp32. https://github.com/bareboat-necessities/bbn-wave-period-esp32....
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motamman - I have been happily coding various s...

I have been happily coding various sensors with Arduino IDE using various flavors of the esp32-c6. I had originally intended to use micro or circuit python but they didn't work with the new esp32s when I started. (And I am not sure they do now.) But that's besides the point. I was very pleased with my signalk integration this sailing season. Recently, however, I thought I would give sensesp a looksee now that I was comfortable in the c++ sorta/Arduino world. So I ported some code over to platformio using vs code, only to discover the esp32-c6s that I use aren't supported by Arduino with platformio. ...

ab19 - Hi… I have a newbie question.. If I conn...

Hi… I have a newbie question.. If I connect HALMET to my circa '95 Yanmar engine’s senders, do I risk breaking signals to existing gauges? Is there amplification or signal boosting required? Trying to be cautious. Maybe overly so. Any advice would be greatly appreciated.

DWinchester - I have an sensesp coding question...

I have an sensesp coding question. I started this project using hatlabs HALMET firmware code considerably modified only using the tank part of code that used the analog converter modual. In the original code a constant scale factor was set before the statement:...

barnaclebill - Has anyone found a flow meter th...

Has anyone found a flow meter that works on small (10HP/7.5kW) outboards (for fuel)? Most I've seen have a minimum LPM that's a lot higher than a small outboard consumes.

big__col - Is this error anything to be concern...

Is this error anything to be concerned about?? Resolving esp32dev dependencies... Platform Manager: Installing espressif32 Downloading 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Unpacking 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Platform Manager: [email protected] has been installed!...

big__col - Bilge counter setup question. Hi al...

Bilge counter setup question. Hi all, I'm using Halmet digital inputs to read when our bilge pumps activate. I have this data in SK and written out to an InfuxDB. I'm interested in other peoples solutions, but I also have these questions for my current solution please. Q1, how do i count the number of times the bilge runs and display in a graph, date vs times activated? Q2, the database seems to record the state of the bilge switch several times per second. I really only want to know when it activates and for how long Q3, what do people use for external alerting, SMS/EMAIL/push, and how you configured? i have permanent internet aboard Thanks, Colin...

juans#0046 - Hi, I bought this tachometer for m...

Hi, I bought this tachometer for my YANMAR 2GM20, everything works but the value is always 0. I connect one wire to D4 and the other to GND. I followed the example in SENSESP repository. The signal of the tachometer is sinusoidal. Acabo de encontrar este increíble artículo en AliExpress. ¡Échale un vistazo! ...

DWinchester - Can someone point me to example s...

Can someone point me to example sensor code that uses multiple dallastemperature sensors.

ray_sabado - We have a generator that only has ...

We have a generator that only has shutdown sensors for exhaust temp, water temp, and oil pressure. What is the easiest way to get actual values for those parameters into Signalk?

mshulman - Does anyone have a CAN to USB device...

Does anyone have a CAN to USB device that they like with good linux drivers? I thought I had one, but I can't build the ubuntu drivers for it.

big__col - I cant get N2K data into my SK serve...

I am getting other data into SK server from non-N2K devices, so i believe the Halmet to SK connection is working. It appears to only be a problem with N2K data not being fowarded to the SK server, or maybe i've missed some config on the SK server. I've used the default/example firmware from Git, untouched. Steps performed:...

barnaclebill - Any recommendations for a way to...

Any recommendations for a way to determine when a small outboard is running? 8HP/6kW, no access to any spinning parts (except the prop). I was thinking maybe an IMU to detect vibration. Pull start, so no electrical/alternator, but maybe I could insert a voltage sensor between the magneto and the spark plug.

vokkim - Also been having problems uploading Pl...

Also been having problems uploading PlatformIO build into the device and now it fails every time 😦 Serial port /dev/cu.usbserial-11240 Connecting...................................... Download mode successfully detected, but getting no sync reply: The serial TX path seems to be down. The serial monitor runs fine...

vokkim - Having problems with SensESP and N2K c...

Having problems with SensESP and N2K connection. B&G Zeus can get some engine RPM readings from the ESP, but lists the device name as ??? and without any device info. Also I can't verify the actual data displayed yet since the boat is on land now, but at least the Zeus showed correctly 0 RPM. What might be the problem? Here's the relevant code: ``` tNMEA2000 *nmea2000; nmea2000 = new tNMEA2000_esp32(CAN_TX_PIN, CAN_RX_PIN);...
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