OpenHack: Open River Monitoring System for flood prediction
salmanfaris last edited by salmanfaris
So what is OpenHack, it’s an immersive open hackathon where students, professionals, researchers, makers and anyone with an interest in technology gather together to build a single project, disaster management, awareness and alertness platform in two days. I’ve been part of the hackathon as IoT/Hardware mentor from MakeGram community.
OpenHack is very different from the normal hackathon, in the normal hackathon, it’s all about competition and everyone building a different solution, but here every single one working on the same problem and the same solution collaboratively. 🥰
I have written a detailed blog on this and you can find here : OpenHack 2019 : 48hrs Collaborative hackathon Summary
This thread is to keep a log on Open River Monitoring System
swalahamani last edited by
Update - Meeting Summary:
Agenda: Sensor Selection and Connectivity option
Time & Date : 10.15 PM to 11.20 PM (23/Sep/2019)
Attendees: Swalah, Akash, Rafi, Alex and Salman
We started the discussion from what we have done so far, and we know that we were stuck at sensor and connectivity selection.
Cellular over LoRa WAN: LoRa WAN is not a good option since we need to set up the complete infrastructure from scratch. Also currently we are only planning to deploy 10 test nodes, it will not be worth setting it up just for that. On the other side, Cellular is already an established network which is feasible to manage 10 devices and can be implemented rapidly. Thus we are planning to go with cellular in the first batch. (Please share your feedback too, it's very important).
Sensor parameters: After got into a conclusion on the connectivity, we started discussing the sensor parameters to be collected for the analysis and prediction. They are :
-> Water level (High Priority )
-> Water Quality
-> River Flowmeter
-> Rain Gauge
Since we only got a few sensors details in past weeks, we decided to list them again based on the parameters and priority. We distributed them based on attendees interest.
-> All members are requested to submit sensor details before the next meeting which is scheduled for 7th December 2019 (High Priority)
-> Documentation: If possible add our Mission and Vision to our GitHub page
NB: Next team meeting will be on 7th December 2019 from 09.00 PM to 10:00 PM
@salmanfaris best if you could point me to an example that works as described: getting different values depending on hoe close the finger is without really touching. nothing i tried did work yet
@salmanfaris I haven't found a good sensor module for this at all. I used a thing which was calles touch sensor and it returns only 1/0. Tried to use touchRead() but it is not sensitive apparently, only 40 and 1 more or less.
#define touch_pin_numer 33
const int VALUE_THRESHOLD = 30;
TOUCH_SENSOR_VALUE = touchRead(touch_pin_numer);
if(TOUCH_SENSOR_VALUE < VALUE_THRESHOLD)
Serial.println ("Touch ON");
Serial.println ("Touch OFF");
should show something between 40 (current max) and 1 (current min) the closer the finger gets but it shows 40/41/39 and 1 - nothing inbetween. got this code from the web
@FlorianB Can you share the code, output window/error and details of the sensor module?
Hi! I am trying to add an capacitive sensor to the ESP32, that will work through glass with 3mm thickness and an distance of 8 to 2 cm. I have bought sensors which only work on touch, i have looked into the touchRead() function but cant get a steady value increase/decrease with distance and only a real touch gets me enough difference to count it as a "touch". I have checked Arduino examples with foil where a resistor can set the sensitivity but nothing worked on my ESP32. i have spent hours looking for an example, can somebody point me to one please?
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