Simulating 1-wire slave device

[jonathansmith]

We have a system that uses some 1-wire EEPROM and temperature sensor devices, such as the DS18B20+ and DS2431+

Each time we build a test rig we need to purchase a number of these devices, but of course they are difficult to get hold of at present and the ones we have in stock are needed for production.

We use LPC devices extensively in our R&D department. We have some legacy 1-wire code that acts as a master device, but not a slave.

Can anyone point me to any information that might help me use an LPC device to simulate a 1-wire slave device?

Thanks in advance.

[Christian77]

We simulate a 1-wire slave device the DS28E17 by using an ATTiny85; 
http://www.zevendevelopment.com/zwire.html

We were forced to create our own product due to the unavailability of the devices.  We made it even better!

[RaRo]

Hello @jonathansmith,

Unfortunately, there is not much information related with your query; there is some information or similar situations in the next posts, nonetheless, they are using other technologies:

• 1-wire slave emulator for PIC16 microcontroller – owslave and GitHub - bfabiszewski/owslave: owslave – 1-wire slave emulator for PIC16 microcontroller
• GitHub - orgua/OneWireHub: OneWire slave device emulator
• Finally, please refer to the 1-wire documentation: 1-Wire Search Algorithm | Analog Devices, 1-Wire Software Resource Guide Device Description | Analog Devices, and DS18B20 - Programmable Resolution 1-Wire Digital Thermometer

Hope this information will be useful for you.

Best regards, Raul.