[Sedhead]

Thanks so much @srgdamiano. I noticed your comment “This endpoint serves as a temporary access point between the shut-down of the WoFpy service and the development of a more efficient and permanent service.”  Are you aware of anything in the works to create this “more efficient and permanent service”? That being said, I think I can see how to do this with the data I need to access.

[Sedhead]

Let me lay the cards on the table: I am coming back to sensor construction after a five year hiatus (I’m a geology/env sci prof and covid sort of wiped out cool things like this for me). So I’m trying to spin back up and I’m hoping to implement a water level sensor in our university’s water sumps to monitor ‘invisible’ water as it flows through campus. This is part of a course. My intent is to install 4-5″ PVC stilling wells in the sumps, then mount the ultrasonic probe to a pvc cap, as you show in your post (https://www.envirodiy.org/ultrasonic-water-depth-sensor/). Because this is an indoor deployment I can use local power supplies and the university wireless to transmit data from the sensor/mayfly and that is my plan. When I look at the Maxbotix specs the MB7375 (RS232) or the MB7395 (TTL) with the larger cone seem the most appropriate because of the 1.5 m range. My first thought was that I would use TTL for serial communication, but I don’t have a strong reason to prefer it because it seems like both TTL and RS232 would work. That is unless the beefier RS232 power pulses would somehow be better for communicating with a wifi card, but that seems unlikely to me (as you can see, I’m no electrical engineer). So, given that you, Shannon, seem to be the guru on these sensors, any help you can give would be very much appreciated. I learn well from looking through existing code, so that would be most helpful. If you have a strong preference for a specific wifi board, I would appreciate your recommendations as well. I’ve looked through the modular sensors site on Github and there seem to be a plethora. My colleague, Beth Fisher, used SIM800H Wireless cellular boards for a project we did in 2018 and I still have some of those, but I’m not interested in cellular comms for this project.

[Sedhead]

Thanks Shannon! So excited. Better than Christmas.

[Sedhead]

Thanks for you input, Neil. We decided to try out the Feather mainly for cost issues, and it seems fine for a lot of things, but it just isn’t working with the sensor we have. Seems to have problems communicating with the Serial port. I can read other I2C sensors, but this one is giving me fits.

We looked at the Mayfly and decided to try out the Feather b/c it was cheaper. However, I think we now know this may have been a mistake. We ordered the very last Mayfly on Amazon and we’re going to try that. Some initial tests suggest it will work. However, I would still like to try to get it working on the Feather.

[Author]

Posts