Tony - Has anyone programmed an air sensor? I a...
Has anyone programmed an air sensor? I am considering one for the engine room and main cabin for detecting exhaust/gas leaks and air quality. Mainly for carbon monoxide and smoke, but perhaps also general air quality. I am looking at SCD-41, SCD-30 vs SGP30, and other options. Curious about the accuracy and ability to calibrate. Also available programming libraries to simplify reading measurements, etc.
Tony - @Matti Airas Does the HALMET PCB support...
@Matti Airas Does the HALMET PCB support multiple i2c sensors? I have two BME 280 sensors I would like to connect and read from the same i2c bus on a single PCB. I am using the
adafruit/Adafruit BME280 Library @ ^2.2.4 dependency and attempted to create two pointers with two different addresses; 0x76 and 0x77 without success. I am still trying to determine how to get the addresses of the devices programmatically, and also how to wire two together (like one wire or different?). I appreciate...Roger - I’m looking at doing a project to use a...
I’m looking at doing a project to use a couple of ESP32s, connected over the n2k network, to control my windlass. One would be at the helm and will be used to receive the input from an up/down switch, and the other will be at the bow and will output to a pair of relays to control the windlass, and will also receive an input from a chain counter. Does anyone have any examples for sending switch commands over n2k to a specific device?
Tony - I have been iterating on humidity and te...
I have been iterating on humidity and temperature sensors for the past couple of years. I started with Govee, then added wireless Shelly, and now looking for wired sensors using one wire or i2c. For the combination sensors I am looking at SHT31 or SHT35 but would like something with a 1 meter cable and waterproof sensor. Any advice on where to purchase them for cheap? Amazon has them for about $20 USD, but am okay with waiting for an international shipment since I am planning on having several t...
Tony - Shout out to @mairas for including heade...
Shout out to @Matti Airas for including header pins for both the one wire and the GPIO for HALMET. Now I only need pin connectors to connect sensors. A lot less work on my end now. Thank you
Sailabout - Has somebody any experience with th...
Has somebody any experience with this NMEA0183 sensor hub ? https://www.aliexpress.com/item/1005003198523326.html?spm=a2g0o.productlist.main.11.38dd5a2fk2DKXH&algo_pvid=b4ede564-c192-42de-8f15-094a0b31df13&algo_exp_id=b4ede564-c192-42de-8f15-094a0b31df13-5&pdp_npi=4%40dis%21EUR%2117.22%2111.88%21%21%2118.21%2112.56%21%402101ef5e17087507174883924ea6f8%2112000024622024930%21sea%21BE%210%21AB&curPageLogUid=7O3ePZIzPOl7&utparam-url=scene%3Asearch%7Cquery_from%3A
I recently (yesterday) hooked up my SH-
I recently (yesterday) hooked up my SH-ESP32 with SensESP and 2 temperature probes. I'd like to add tachometer to the data it sends to signalk. The question is can I safely just connect the wire from the alternator directly to the SH-ESP32 opto-isolator inputs, or do I need any additional circuitry to make sure I don't fry the SH-ESP-32?