A quick update, with background data recorded from the sensor coil!I had the chance to write some firmware to test out the amplifier board this weekend. The amplifier board consists of an AD7680 16-bit 100ksps ADC with an SPI interface, with a 1-10KHz...
The schematic for the current build has been posted, but I wanted to ad some notes on it. Currently I use a micro-USB power pack to supply the ESP32 board, but I also use a separate 5V power supply to provide power to the relay board. Note...
Well the latest batch of PCB's have arrived. Finally I have a simple 32 bit fixed value board. This allows me to set a 32 bit value using dip switches so I can then feed that value into other boards as test values. This makes debugging so much easier.I...
An update after a long last!The next step for the design is to make the FPGA system stand-alone, i.e. able to boot and operate without a host PC. A USB connection will still be needed, but only to provide power. Today I implemented a new feature,...
So... I feel dumb. I was overly worried about making it so that a power source could be plugged in without the battery also supplying power... I realized earlier that the battery is in line with the power source because duh how else...
Alright, got FreeRTOS & StemWin integrated, and got some demo code working so I could see the LCD actually run some animation, widgets, etc. Have to say, STemWin is an awesome library, almost endless possibilities of what you can create. ...
Designed a custom I/O processor (IOP) in VHDL. Runs autonomously from the Host CPU. 8 Bit CPU Application The 32 LEDs can be used to monitor 16-bits of instructions8 - bits of data8 status lines (Run, etc) The 32 pushbuttons can be used for: 16-bits...
Yay ..... The system now has four LoRa modules sending data to another set of four modules in parallel! In the previous update I had one module working at a spreading factor (SF) of 7 and bandwidth of 500 KHz transmitting every 5 seconds or so. Now I...
Home automation – the idea of a smart home that monitors and controls the inside environment, takes commands from occupants, and generally makes living easier. Hackers, makers, and engineers have been building their own vision of the smart home for decades....
Apparently it's brain-dump time.In the previous log I showed my thoughts on making a sorta general-purpose prototype-board that can be used for the first soldered prototype, as well as be used/usable for many other unrelated projects...Here's the latest...
Okay, so I started this project very naiive. "Why don't I just take one sample, transmit it over wireless, then output it to a DAC on the receiver". The answer to that question is: Because audio is fast. While trialling that approach, I quickly realised...
I decided to try out the SCARA style arm. For whatever reason it's more interesting to me than the cartesian robot. All this planning was fun, but I really want to start making something! With that in mind I decided to order some parts from Sparkfun....
Ok so we're done doing the physical assembly...had a few issues along the way.The battery box clearance (rear-mounted) might be problem for speed bumps. Current clearance is only about 2 inches. Hard to find an aluminum (for heat sink) case big enough...
TORQUE CALCULATION MOTOR 3 MOTOR 2 MOTOR 1 Product Specifications Height Adjustment 2 Feet ( Automatic ) Distance from stand 1.5 Feet Battery Life 4 Hours AC supply 220-230 V Current Required 2-3 A Food Volume 1.5 Liters Food Types Semi-solid Sensor...
Ok, so, this project is still entirely ones and zeros. I KNOW. Serious lack of follow through on my part. In my deference, this is where I am right now:That little blue dot in the Atlantic has been home for the last week. Also, my wife is pregnant with...