SolarCamPi

Thu, 14 Jul 2022 00:00:00 +0000

What is it?

SolarCamPi is an off-grid webcam solution, that can take a picture using a Raspberry Pi Camera or a USB webcam every 5 minutes and send the image over a long-distance WiFi link.

Using a very specialised Linux image on the Raspberry Pis SD card, booting, taking a picture and sending it over WiFi can be done in under 15 seconds. This allows the Raspberry Pi to be powered off most of the time, saving energy.

Environmental sensor

Sun, 26 Jan 2020 00:00:00 +0000

What is it?

A cheap, low-cost HomeMatic-compatible temperature & humidity sensor.
The design is optimized for automated assembly and does not need any manual (re-)work.

Technical specs

HomeMatic-compatible sensor
Input voltage: 3V (2x AA or 1x LS14500 lithium recommended)
Absolute maximum input voltage: 3.6V (don’t use LiIon or LiPo cells!)
Low idle/quiescence current: 3.2µA
Very long battery life (> 3 years)
Measurement every ~3 minutes
Accuracy: Humidity: ±2.0 %RH, Temperature: ±0.3 °C
Using ATmega328 (MCU), CC1101 (TRX), SHT21 (Sensor)
Optional BMP280 pressure sensor
Optional SMA footprint for external antenna
Extension header (UART, I2C, 1 GPIO)
Firmware updates via OTA
Running AskSin++ firmware

Operating modes

There are several different operating modes which determine the sensor behaviour.
Some add additional features and need a CCU addon to be compatible.

IoT / Home automation on KittenLabs

SolarCamPi

What is it?

Environmental sensor

What is it?

Technical specs

Operating modes