James_NZ – EnviroDIY

James_NZ commented on the post, Evaluating Maxbotix Ultrasonic Sensors for Monitoring Stream Base Flow 1 week, 1 day ago

Great work guys. We are also interested in these sensors and have also been considering a boom-type setup.
I think it might be worth getting one of these to see if it’s fit for our purpose.

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James_NZ replied to the topic DFRobot Gravity KIT0139 Depth Sensor – Routine Interference? in the forum Environmental Sensors 2 weeks ago

Hi all,

Yes we are using the ADS1115. The board temperature (DS3231) in the box is plotted in yellow below.

James
James_NZ started the topic DFRobot Gravity KIT0139 Depth Sensor – Routine Interference? in the forum Environmental Sensors 2 weeks, 1 day ago

Hi Everyone,

I am testing a number of low-cost sensors, one of them being the DFRobot Gravity KIT0130 water level sensor (~40USD) (https://www.dfrobot.com/product-1863.html). This requires 12-24V so we link it to an external solar panel circuit (i.e. a standard battery/solar panel/solar regulator set up), with the current being converted to…[Read more]
James_NZ replied to the topic Adding New Sensors to Modular Sensors in the forum Mayfly Data Logger 1 month ago

Thank you @srgdamiano 🙂
James_NZ started the topic Adding New Sensors to Modular Sensors in the forum Mayfly Data Logger 1 month, 1 week ago

Hi,

I have a reasonably basic question about the modular sensors code. We are trialing new arduino type sensors that are not included in the modular sensors library. What is the best way to make these work with the modular sensors logger code? At the moment I am creating ‘calculated’ variables, but I’m hoping there is a tidier way to do th…[Read more]
James_NZ replied to the topic DFRobot SEN0244 on Grove Analog AUX in the forum Mayfly Data Logger 1 month, 3 weeks ago

Thank you @shicks.

That set me on the right track. I think I can figure the rest out from here.

Just to make sure my understanding is correct, the ADS1115 is included in the Mayfly because it provides more voltage resolution than on standard analog pins, i.e. it allows for finer divisions than 0-1023 bits?

Thanks for your help.

James
James_NZ started the topic DFRobot SEN0244 on Grove Analog AUX in the forum Mayfly Data Logger 1 month, 3 weeks ago

Hi everyone,

I have been given a pretty elaborate Mayfly station from the University, and I’m trying to attach a couple of sensors that aren’t in the modular sensors library. One of those sensors is a simple DFRobot TDS SEN0244 https://www.dfrobot.com/product-1662.html. This comes with some code, that I have tested using an Arduino UNO, and t…[Read more]
James_NZ replied to the topic Depth measurement using MaxSonar in the forum Mayfly Data Logger 3 months ago

Hi guys,

I am looking for low-cost methods to measure stage in rivers and streams, and was wondering if anyone has had any success? Neil’s transducers look great, but are too expensive for our needs. The goal is to develop a rating curve and use it to calculate loads.

Has anyone had any success with cheap pressure transducers available on A…[Read more]
James_NZ replied to the topic Inexpensive DIY conductivity sensor in the forum Environmental Sensors 3 months, 2 weeks ago

Hi Neil,

We are looking at developing a network of Mayfly stations for characterizing a catchment, with three tiers of sensor quality. The top tier (~10% of stations) would have top-standard sensors, and would be used to calculate loads at the bottom of the catchment, or investigate interesting signatures at certain sites. The middle tier (…[Read more]
James_NZ replied to the topic Inexpensive DIY conductivity sensor in the forum Environmental Sensors 3 months, 2 weeks ago

Hi Neil,

How did your experiment go? Have you managed any field deployments?

I’m looking at options for developing a DIY conductivity sensor, to go along with DIY turbidity and depth/pressure. Ideally it would be calibrated, but relative conductivity might be okay.

James
James_NZ replied to the topic Wingshield for Modbus Communication with Isco Signature in the forum Mayfly Data Logger 5 months, 1 week ago

Hi Nathan & Sara,

I have just purchased an ISCO 6700 auto-sampler to collect some storm flow samples in my region, with the intention of using the data to supplement load calculations. I would like to set this up so that it will trigger when a measured variable crosses a pre-defined threshold. I would also like to be able to trigger remotely b…[Read more]
James_NZ replied to the topic XBee – R410M – Can't connect in the forum Mayfly Data Logger 5 months, 2 weeks ago

Hi Sara,

Alas, no light. I think that explains why I haven’t had any luck! And why the guys at the university passed it on to me to see if I could get it to work.

Thanks for your help.

James
James_NZ replied to the topic XBee – R410M – Can't connect in the forum Mayfly Data Logger 5 months, 2 weeks ago
Hi Sara & Shannon,

Thank you for your quick reply. Answers to/comments on your questions are as follows:
- How are you attaching your XBee to the computer? – I am attaching the XBee to the Mayfly via a LTE module.
- Are you plugged into the USB-C port, not the side microUSB? – I am plugged into the microUSB on the mayfly. This is plugg…
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James_NZ started the topic XBee – R410M – Can't connect in the forum Mayfly Data Logger 5 months, 2 weeks ago

Hi,

My name is James. I am working with a team in New Zealand to deploy Mayfly logging stations at numerous sites in my region.

I have been given an XBee – R410M modem and I am attempting to use it to send data to MMW. I have read through many of the existing forum posts about problems that people have experienced, and have modified the pins t…[Read more]

@james-dareboprc-govt-nz