(Best view 1920 x 1200)This chapter only discuss about PCB design and PCB prototype. Sorry guys have a bad cough and fever this weeks.Get an 4 days MC. PCB:Look like I need to have 2 design PCB for this project for now. Fan have a big internal cutout...
Over the past few days, I have been contemplating about the hardware for this particular project and ended up with a PCB design as rendered below. Initial Thoughts How I came into this design was a result of a thought process that att...
Hello to everyone!! So, my update last week didn't get posted due to a drastic change in our project. With the focus on clean air, water and soil sensing, I was creating sensor boards for.. well sensors. This was starting to work well until my d...
AirVantage REST API In the previous post, I created a Java MQTT client to push data into the AirVantage cloud platform.Next step is to read it out and make it available to OpenHAB. In this post I will talk about the AirVantage REST API, whereas ...
Apologies folks for the long gap between posts! Things have been moving forward, although not as fast as I would like, and not ion all the areas I would like them to. Things Achieved Assembled a frame for the project - Ikea Gorm frame,...
MQTT Java ClientMQTT is a light-weight protocol initially developed by IBM for transferring telemetry data. It' based on the publisher-subscriber paradigm: a device can publish data into the system and many receivers can subscribe to get data changes...
The image below shows my sensor node enclosure. The enclosure is an air-tight box where all electronics ( MSP430FR5969, batteries, C110L tranceiver) will be fixed inside. A total of four PVC elbows with 12 inches pipes are mounted on two longer sides...
The LCD itself
First things first...
The bus pirate.
On to the bus!
Conclusion
I got one of these (The LCD!The LCD!) LCDs from the budget and the motive is to use them to display air quality. Low and behold I got them and these things are t...
This week's update is going to be short but sweet, as I have been working most on the firmware architecture and device driver development. So far, the code flow as below. The intention is that the emission sensor board will be ...
(Best view 1920 x 1200) This chapter I will share about PCB design.This PCB design in under progress. I will talk about the design, problem, solution and related issue.It simply straight forward since we have dedicated hardware and all the relat...
Just a quick post with my preliminary schematic.My plan is to prototype this circuit on a shield first and then to order a custom PCB board. Finalized schematic, BOM and layout to follow.
While creating the board layout, I realized (too late!) that the package I choose for the MSP430 was not available. I selected the MSP430FR5947 MSU because it has the same features of the MSP4305969 mounted on the LaunchPad but in a more handy TSSOP3...
Its been a hectic couple of weeks and progress has been slow. I will be posting a series of smaller posts to cover work done and my "evil plans". One of the factors that contributed to my slow progress was sensor selection and I am still a ...
