A basic example of a 1-wire bus with components
The components include an interface / driver (DS2480B) for the serial connection to the PC. The interface can also be the USB DS9490 or the I2C devices DS2482-100 (800)
A temperature sensor (DS18B20), an I/O (DS2408) to control or to measure high/low signals and a 16 bit ADC (DS2450) to to measure voltages up to 5V. The can also be replaced bij the DS2438 (single ADC). The I/O and ADC ICs can be supplied by the bus for power, parasitic power mode or by the 5V itself.
An 8-channel IO control scheme with "watch dog timer.
The 1-wire IDE (DS2408) must be controlled every couple minutes. Otherwise the 4060 count will come to its maximum, all outputs will be blocked. This prevents the heater is left on while the software is stopped for example.
The 4060 timer is reset by the strobe output of the ds2408.
LCD 16x1 characters
A hd44780 based lcd driven by a ds2408 device. This schematic based on the old design of Hobby Boards will work out of the box with owfs software.
owwrite /29.09C211000000/LCD_H/clear 1
owwrite /29.09C211000000/LCD_H/screen "Hello world"
See also: http://owfs.org/index.php?page=ds2408
This will work out of the box forexample: owread /26.61F63D020000/humidity. Supports also HIH4000.
Barometric pressure sensor
zie also https://www.fierceelectronics.com/components/1-wire-addressable-digital-instruments-for-environmental-monitoring