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All content on EnviroDIY is licensed as Creative Commons Attribution-ShareAlike 4.0. Hardware designs on EnviroDIY are released under the CERN Open Hardware License 1.2. Alternative licenses are available. Learn more
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Shannon Hicks replied to the topic Hyrdos 21 Gen2 – Can't Change Address in the forum Environmental Sensors 1 years, 5 months ago
If you’re able to swap out a Hydros21 manufactured in 2022 with your hardware and everything works fine, but sensors from 2023 aren’t working, then it’s possible that they’ve made another design change that requires some tweaking of the ModularSensors code library to make them work correctly. We’ve had a report of one other person having trouble…[Read more]
Shannon Hicks replied to the topic Negative Voltage Reading from Single-ended ADC Using Apogee SP-212-SS Sensor in the forum Environmental Sensors 1 years, 5 months ago
First you should attach the sensor’s clear wire to the GND pin of the screw terminal board along with the black wire.
Second, the sensor needs at least 5 volts of excitation power, and the jumper setting of the Aux Analog Grove jacks in your photo is set to the default 3v position. You need to move that jumper to the 5v position. See the s…[Read more]
Braedon started the topic Negative Voltage Reading from Single-ended ADC Using Apogee SP-212-SS Sensor in the forum Environmental Sensors 1 years, 5 months ago
I am trying to get shortwave radiation readings from an Apogee pyranometer (SP-212-SS model). I am new to electronics and microcontrollers, so there could be a lot of places I am going wrong here. I am using a Mayfly version 1.1 as the data logger. To connect the sensor, I am using the Aux Analog grove terminals. I’ve attached a picture of my…[Read more]
Jake Lemon started the topic Meter Group ECT Air Temp Sensor in the forum Environmental Sensors 1 years, 5 months ago
Has anyone used the meter group ECT air temp sensor with the mayfly? Is there code out there to support this? Comments on experience with the sensor itself? It comes with a solar shield which is nice.
https://www.metergroup.com/en/meter-environment/products/ect-air-temperature-sensor
John replied to the topic Hyrdos 21 Gen2 – Can't Change Address in the forum Environmental Sensors 1 years, 5 months ago
Thanks, Shannon.
I did double check the things you mentioned. And as I said, this whole setup just worked when I did it with different gen 2 Hydros sensors in January. Still not having any luck.
Are there other things to try?
Sedhead started the topic xBee Wifi module intermittently connecting in the forum Mayfly Data Logger 1 years, 5 months ago
We have a working sketch for a Maxbotix Sonar to read water level in basement sumps on our campus. The sonar is getting good readings and appears to be logging to the SD card fine. However, we are finding that we only get intermittent logging to MMW via the modem. We are using a DigiXbee wifi modem that connects to a wireless network on our…[Read more]
Shannon Hicks replied to the topic Hyrdos 21 Gen2 – Can't Change Address in the forum Environmental Sensors 1 years, 5 months ago
Does the sensor have bare wires or a 3.5mm stereo plug? Either way, ensure that the sensor is connected properly to the Mayfly with the sensor power wire going to a 3.3v or 5v constantly powered pin during the address changing sketch. And make sure that the data wire of the sensor is connected to the proper Mayfly pin, which is usually D7 in t…[Read more]
John started the topic Hyrdos 21 Gen2 – Can't Change Address in the forum Environmental Sensors 1 years, 5 months ago
I have some new METER Hydros 21 (gen 2) sensors and I want to hook them up to my Mayfly to calibrate them against some known standards before I deploy them. The problem is that the b_address_change sketch (https://envirodiy.github.io/Arduino-SDI-12/b_address_change_8ino-example.html#xample_b_page) can’t seem to determine what address the sensor…[Read more]
Jake Lemon replied to the topic TSV Issue in the forum Monitor My Watershed 1 years, 5 months ago
It is working now. Thank you!
Heather Brooks replied to the topic TSV Issue in the forum Monitor My Watershed 1 years, 5 months ago
This issue has been fixed. Please let me know if you continue to have difficulty.