Activity – EnviroDIY

Shannon Hicks replied to the topic Parts list, European vendors – Water level and ph in the forum Mayfly Data Logger 4 weeks, 1 day ago

We’re really excited to partner with Labcrafter so they can be a source of our products to people in Europe. As for sensors, the Maxbotix MB7389 you mentioned is probably your best bet for low cost ultrasonic rangefinding. Just be sure to order the TTL version so it’ll work straight into the Mayfly board (the RS232 sensor would require an i…[Read more]

jsterling replied to the topic Library issues in the forum Mayfly Data Logger 4 weeks, 1 day ago

/** =========================================================================
 * @example{lineno} EnviroDIY_Monitoring_Kit.ino
 * @copyright Stroud Water Research Center
 * @license This example is published under the BSD-3 license.
 * @author Sara Geleskie Damiano <sdamiano@stroudcenter.org>
 *
 * @brief Example for DRWI CitSci LTE sites.
 *
 *…

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jsterling started the topic Library issues in the forum Mayfly Data Logger 4 weeks, 1 day ago

I’m working on building a sensor station using a Mayfly Data Logger v. 1.1, EnviroDIY cellular bee, a Hydros 21 CTD sensor. I am using the sketch EnviroDIY_Monitoring_Kit.ino and the Modular Sensor Libraries v0.37.0. I am having a difficult time getting my sketch to compile. I am receiving the following error that it cant find…[Read more]
Jasper started the topic Parts list, European vendors – Water level and ph in the forum Mayfly Data Logger 1 month ago

<span style=”font-weight: 400;”>Hi EnviroDIY community. We’re looking to set up 1-2 EnviroDIY stations in Ireland.</span>

<span style=”font-weight: 400;”>We’re currently looking at multiple potential use cases. Water level monitoring for a kayak club and water level + ph monitoring for two environmental groups.
</span>

<span sty…[Read more]
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Sabin replied to the topic EspressifESP32 in the forum Mayfly Data Logger 1 month, 1 week ago

Never mind. The wifi worked. I used AT+CWMODE? and change it from SoftAP to Station mode.
But I am struggling to use this to connect to mqtt broker.
Sabin started the topic EspressifESP32 in the forum Mayfly Data Logger 1 month, 1 week ago
How to connect to Wifi while using this in Mayfly data logger?
I have been trying this codebase or even the one with tinygsm library but nothing works. Is there any pre-configuration that is needed to be done?
```
#include <ModularSensors.h>
#include <modems/EspressifESP32.h>
#include <Arduino.h>
#include "arduino_secrets.h"


#define XbeeSerial…
```
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caroline@wachusett started the topic Mayfly MicroSD card not recording properly in the forum Mayfly Data Logger 1 month, 2 weeks ago

Hello,

We’ve had a Mayfly station that had the Mayfly board (version 1.1a) replaced in April of 2025. We download the data monthly and the board has been working well up until this spring. When I checked the data for April, the microSD card (8 GB SanDisk Edge) had multiple file extensions I have never seen (see photo from May 6th). The microSD…[Read more]
Sara Damiano replied to the topic Secure Client for DigiXbee in the forum Mayfly Data Logger 1 month, 3 weeks ago

The ESP32 does. It’s also a currently supported product and very widely available. You can get very cheap ESP32 breakout boards in a variety of shapes and sizes. There are several flavors depending on how much power you need, but they can all do a basic secure post request. You could even use the older, even cheaper ESP8266.

If you’re usi…[Read more]
Sabin replied to the topic Secure Client for DigiXbee in the forum Mayfly Data Logger 1 month, 3 weeks ago

Thanks for the reply.
So, how do I even do POST request to server running on the web? Are there any Wifi modules that are alternative to Xbee that supports SecureClient?
Sara Damiano replied to the topic Secure Client for DigiXbee in the forum Mayfly Data Logger 1 month, 3 weeks ago

No. The S6B (wifi) does not support secure clients.
Sabin started the topic Secure Client for DigiXbee in the forum Mayfly Data Logger 1 month, 3 weeks ago

I am trying to send post request to playgrond.hydroserver.org – which requires Secure Client. Does secure client really works for DigiXbee S6b?
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caroline@wachusett replied to the topic Hydros21 Reporting -9999 on Mayfly 0.5b in the forum Mayfly Data Logger 2 months, 2 weeks ago

Hi Shannon,

Thank you for the response. I ran the board attached to my computer in Arduino and the red LED3 light did come on when the sample was run. I put a voltmeter across the GND and V pins and the voltage was 3.3v when the sample was collected.

The sketch on the 0.5b board is older than 2022 so that would explain why the new Gen2…[Read more]
Shannon Hicks replied to the topic Hydros21 Reporting -9999 on Mayfly 0.5b in the forum Mayfly Data Logger 2 months, 2 weeks ago

All Mayfly logger board from version 0.3 to the current v1.1 (and including your v0.5v) have a separate 3.3v regulator that powers external sensors, and also the 5v boost circuit. This secondary 3.3v regulator is turned on or off by controlling pin D22. When the regulator is turned on, a red LED in the lower left corner of the Mayfly should t…[Read more]
caroline@wachusett started the topic Hydros21 Reporting -9999 on Mayfly 0.5b in the forum Mayfly Data Logger 2 months, 2 weeks ago

Hello,

We have a Mayfly station with a version 0.5b board and a Hydros21 CTD sensor attached. The sensor had been working for years at the site but recently, the CTD measurements were being reported as -9999 for all three parameters. I tried troubleshooting and ended up swapping out the sensor for a new Hydros21 CTD sensor. Before deploying, I…[Read more]
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