St. Louis RPM 2021
We will be at the St. Louis Railroad Prototype Modelers (RPM) Meet this coming Friday and Saturday (July 30-31, 2021). Stop by our tables, say hi, and see our line of products, including some new ones this year!
- ProtoThrottle – Realistic Control Stand Throttle
- Trainspotter – Rock Solid Train Detection
- New! Motorman – Automatic Reversing Train Shuttle Controller
- New! SoundBytes Crossing Bell – With 7 bells sounds to choose from
- New! SoundBytes Cicada – Need we say more?
- New! PaceSetter – Wireless Scale Clock System
- Corrugated Steel Grain Bin & Culverts from Grain Belt Models
- New! “Half-Bin” Grain Bins in 36′ and 72′ diameters
- New! Behlen Curvet metal storage buildings in HO-scale
We will also be hosting Learning Stations featuring Michael Ostertag, a real life locomotive engineer, where he will talk about how the ProtoThrottle emulates the actions that occur in a 1:1 locomotive cab. These will be held at 2:15PM Friday and 10:45AM Saturday.
Hope to see you there!
Direct Thermocouple Measurement with the ARD-LTC2499
One of the unique uses of the ARD-LTC2499 24-bit Analog to Digital Convert Shield is to measure thermocouples directly. Conventional solutions for digitizing thermocouples use a MAX31855 or MCP9600 to convert the voltage to a usable temperature, but these solutions need one part for each thermocouple sensor, and the part is tied specifically to the type of thermocouple being used. By using the LTC2499 to measure the thermoelectric voltage directly, we can measure up to 8 thermocouples per board, and because all of the conversion is done with math on the host processor, you can have any mix of thermocouple types that you want. It’s remarkably easy to do, and I’ll show you how just how easy it is to get started.
Thank you to everyone who joined the ProtoThrottle Q&A today. For those who missed it, or would like to go back and review the presentation, you can view the recording on YouTube:
The slides from the presentation are available here.
The demonstration videos can also be found on YouTube: