Temperature sensor with serial RS-485 interface. Two additional sensors can be connected using 3-pin headers on the circuit board. Uses an AVR ATmega8 microcontroller.
Temperature and humidity sensor (RS-232), AVR
![Temperature and humidity sensor (RS-232), AVR](https://blog.cavelab.dev/2011/12/avr-temp-humidity-serial-sensor/cover_hubb86f9892bd2a6646e52eefed03c269e_574923_860x0_resize_q80_lanczos.jpg)
I rebuilt an existing interface module — to be a stand-alone temperature and humidity sensor, with serial RS-232 interface. Uses an AVR ATmega8 microcontroller.
Temperature and light sensor with signalling LEDs (RS-232), AVR
![Temperature and light sensor with signalling LEDs (RS-232), AVR](https://blog.cavelab.dev/2011/11/avr-temp-light-serial-sensor-with-leds/cover_hu066928f624943fbf9cb9dc6017f5a8ae_576376_860x0_resize_q80_lanczos.jpg)
I rebuilt an existing interface module — to be a stand-alone temperature and light sensor, with serial RS-232 interface and some signal LEDs. Uses an AVR ATmega8 microcontroller.
Serial interface module, with analog and digital I/O — AVR
![Serial interface module, with analog and digital I/O — AVR](https://blog.cavelab.dev/2009/03/avr-serial-interface-with-adc/cover_hu4f76d2c842191d8fee8d9556c8abd42f_635319_860x0_resize_q80_lanczos.jpg)
Serial (RS-232) interface module; providing 6 analog and 2 digital inputs, and 9 digital outputs. Uses an AVR ATmega8 microcontroller.
Serial port I/O module with 15 inputs — AVR
![Serial port I/O module with 15 inputs — AVR](https://blog.cavelab.dev/2008/10/avr-serial-interface-15-in/cover_hua530fc9c2d98f5dffa650cf9ea73b943_191106_860x0_resize_q80_lanczos.jpg)
Serial (RS-232) interface module; providing 15 digital inputs. Uses an AVR ATmega8 microcontroller.