More on “depth camera”…

I managed to get a couple of hours free in the last few days and I got the spectral representation actually working :) Unfortunately the sensor works between 20 cam and 150 cm… more or less than that and the results are not accurate. Also, reflective surfaces are causing false reads. Anyway, now I just … Continue reading

IoT – fast track with WeMos

I know, everyone now talks about IoT. The new buzz word… I am working on a project that is using one of the CTS boards and WiFi. Unfortunately the WiFi boards are expensive and are only UART to WiFi and the UART speed is too low for what I need, not mentioning that programming was done only using AT … Continue reading

Mug shots

Mug shots

Since I am using a 3 Mbits FIFO to capture the image I am limited to 512 x 378 pixels maximum for raw images. I can play with the size (e.g.: 640 x 307, 600 x 327, etc), however, to keep the 4:3 ratio I will stick with 512 x 378. I manage to take … Continue reading

Capturing pictures

Capturing pictures

The new boards are working fine so far. I managed to get the micro SD card support and works fine. I am still trying to sort out some issues but looks quite promising. First tests are done using .bmp format and trying to capture 8 bits/pixel (grayscale) and 16 bits/pixel (RGB). Those images are coming … Continue reading

CTS upgrades

CTS upgrades

I am trying to add more features to the existing CTS boards. Some of the requirements I had so far were related to streaming and ability to save the images to a card. The new CTS board with OV2640 attached.  While working on some simple compression solutions I was also looking to add uSD support … Continue reading

SumoBot – new platform

SumoBot – new platform

For last month I was actively working on few prototypes. One of them is the SumoBot. Is actually a all-on-board bot using the 22T tracks from Pololu and their metal-motor-gears. Slightly smaller than 90 x 90 mm, is equipped with Accelerometer and Gyro (MPU-6050), motor controller (MCPWM), quadrature encoders, EEPROM to save the settings, WiFi for real-time … Continue reading

MCPWM with LPC175x/176x

MCPWM with LPC175x/176x

For my new “mini Sumo” size robotic platform I am using MCPWM to control the DC brush micro-motors instead of PWM as I am keeping the PWM outputs in case I will want to control some sensors or servos. I could not find a functional example on how to control DC brush motors using a … Continue reading

Breaking the record

Ok, is official: streaming at 14 FPS over a serial link. True, is only B&W and 160 x 120 but is still a record, a personal one. I am trying to get 10 FPS on a 460,800 bps line or even better: 230,400 bps! Then I can stream images over a wifi/bluetooth link. Update: Already come … Continue reading