18 May 2015
- 09:2209:22, 18 May 2015 diff hist +139 Open-source mobile water quality testing platform No edit summary
- 09:1409:14, 18 May 2015 diff hist +218 N File:Final Layout.JPG All PCBs in place, looking down the test tube case. From left to right: PCB3, PCB2, PCB1. The other part of the box is to the right, holding the Arduino and LCD. I took this photo.
- 09:1209:12, 18 May 2015 diff hist +182 N File:Encode sensor.JPG PCB3. The third light to frequency encoder sensor pointing towards the test tube vault where the two LEDs are also pointed at. I took this photo
- 09:0909:09, 18 May 2015 diff hist +316 N File:Sensor LED2.JPG PCB1. Top: sensor pointing towards LED. Bottom: orange LED. Note the mistake: the LED was too big, so we had to put the PCB on the other side of the wall instead of the slide. The slide where the PCB should have gone is visible on the top right (out of...
- 09:0709:07, 18 May 2015 diff hist +121 N File:Sensor LED1clear.JPG PCB2. Left: infrared LED. Right: sensor pointing towards the LED. I took this image
- 09:0609:06, 18 May 2015 diff hist +121 N File:Sensor LED1.JPG PCB2. Bottom: infrared LED. Top: sensor pointing towards the LED. I took the image.
- 09:0009:00, 18 May 2015 diff hist +3,167 Open-source mobile water quality testing platform No edit summary