Johan Kanflo designed a Esparducam board and built a low cost wifi camera with an Arducam Mini and a ESP8266 Wifi module:
Sometime ago I came across the Arducam Mini which is quite a nice camera module from UCTronics. It is a small PCB with a two megapixel OmniVision OV2640 sensor, an interchangeable lens and an FPGA to do the heavy lifting of image processing and JPEG encoding. Priced at around 24 Euros (lens included) you can easily buy a few without hurting your wallet and combined with an ESP8266 you can build quite a low cost wifi camera. Or several. Because designing and building PCBs is both fun and inexpensive I designed a board to go with the ESP8266/Arducam Mini combo, aptly named the Esparducam. And uniquely named too, try googeling for “esparducam“. Heck, even the domain name is available at the time of writing :)
Rui Santos writes, “In this project we are going to establish a wireless communication between two ESPs and send data from three sensors to an Excel spreadsheet. This tutorial shows a wireless weather station with data logging that you can implement in your home.”
As the new solar logger did not have this functionality we decided to design a new data-logger that would measure not only the mains current usage but also keep track of the electric meter and gas meter so we can easily see how much energy we are using in the house.
The new mains energy monitor was designed to be a standalone box that would be powered from the mains and have sensors for the mains current, electric meter and gas meter. As we didn’t want to run any more wires around the house we also decided to make it wireless connecting to our network over Wi-Fi.
Finally I found a purpose for my twatch.
I use it as a monitor for my iclesius wireless thermometer.
So I wrote a quick and dirty python script which works as a relay between the icelsius and the twatch.
The icelsius periodically broadcast the measure data to the local network.
The python script listen to the local network and capture this packet ,and then transform the packet to a format which the twatch understand.
Another very interesting bit of technology. The combination of so much functionality into such a small part is a real touch-stone as to where things are heading.
A quick look at the antenna design to see if I could sort down the details and then some die-decap to analyze the silicon a bit. The RF section is especially interesting. In the video I call out a section as being an inductor… on second thought as I type this it might even be a transformer?