Wednesday, November 16, 2016

Its late mid week, but had to. Got busy with illness, work and failure. But for the effort invested it was worth the time.
This is a picture of the RFM69HW + Arduino Pro-Mini protype.

Well last week and first part of this week is what I am going to cover here.

Let look at the current running projects:

1. RFM69HW Light Sensor

As you have see above I have tried to make some protos after my successful experiment last week.
Here is the Proto that I had built with Old version of Seeeduino (v2.21) :
The picture is quite dark, sorry for that. Its basically a RFM69HW module soldered on to a general purpose board and then inserted into the Top Right connector of Arduino. And the red wire in front is the antenna. Apparently it broke off twice so I had to finally add some heat glue to fix it.
The best part is using a RTL SDR I could capture the transmission.
868MHz Transmission from RFM69HW - LDR sensor Values

Well of course you would remember one more proto using Arduino Micro:
So now with 3 Nodes transmitting the dance of the frequency spectra is awesome to watch.

Here are some Detailed pictures of the RFM69HW board with Arduino ProMini :



This time I had added an XC6202-3.3V regulator that is used to power the RFM69HW.
Hope that the PCB boards from DirtyPCB comes soon both LoRa and RFM.

2. RF-Udaan project

This is the LoRa board that includes the DRF1276G module. Again waiting to get both the modules as well as the PCB board.

3. Static Site Generator

After getting no where with HUGO, Pelican and Jekyll, I got an idea to write my own. Well that might be a bad idea but a good learning exercise. So some basic work is done on that too. Secretly working with golang since its the fastest and easiest for connectivity. The awesome part its a EXE which is very useful for people like me. I come from hardcore C and Assembly background. So any language that gives net connectivity within 5 lines and give Binary output is great. No framework or Virtual machine needed. Well hope that this would be another good exercise to learn the next generation language.

4. SIM900 Relay

A friend of mine asked me to design a GSM control relay. So I have started working on that too.
Currently using a Arduino UNO and a iComSat SIM900 Shield from iteadstudio.

SMS read was easy to do, now planning to make the interpreter part also.
All code would be posted soon, so watch out.


That would be all for this update, hope to see you next time.

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