Big and Small

First toad in the tunnel 2014

Enough pictures of wires; it's sexy time for toads.

Here's the first in the tunnel for 2014.

Bufocam v2 Raspberry Pi PCB using Atmel 328 (arduino) microcontroller

The breadboard/birds nest from the last post is now a shiny PCB - it just needs a box... and bit more programming. Three LEDs and a switch have been added but I haven't decided what they are for yet. Errors, probably.

To recap; the Arduino controls power to the Raspberry Pi via latched relay. Once the Rpi is up the Arduino just listens for commands on the I2C bus - such as measuring Vin, or controlling the pretty lights or killing the power.The Mosfet 'drivering' the IR LED array is directly controlled by the RPi GPIO. There's a real time clock on the I2C bus too. That's about it really.

Bufocam2: Raspberry Pi camera + M12 IR lens + Atmel 328 (arduino)

Figure 1. An ATMEL 328 (stripboard arduino with uno bootloader), latched relay, DS1307 RTC, camera, mosfet, some IR LEDS and a raspberry pi 'A'. The green and yellow wires are (mostly) an I2C bus on which the ATMEL328 and DS1307 appear as slaves.

Figure 2. one of 11000 images of a plastic toad and a fallen power droid under a cardboard box.

 

tunnel data from april/may 2013

NB: there was no data for night 105 due to technical issues with the GoPro camera where it wouldn't take more than 4855 images. Recording effort was variable due to other sd card/firmware issues that arose on the second recording night, ( eg numbers on nights 113, 115 are probably representative.)

Toad tunnel time-lapse

Some toads!

Finally some results to be a bit proud of.

Despite a few technical problems, and thanks to the cold weather, we still caught the migration.

Here are some raw images;