Nuts and Volts - September 2013

24 September 2013

kPa. The pressure data is internally calibrated and temperature compensated. The SCP1000 also provides temperature data and has four measurement modes, as well as standby and power-down mode.

All that is required to obtain pressure data in kPa or temperature data in degrees Celsius is a single multiplication operation using constants. Communication is via an SPI bus which also provides additional control lines such as an interrupt line and trigger input. Price is US$24.99.

PROPELLER

MINI

Also new from Parallax is the Propeller Mini — a low cost solution for embedding a multi-core microcontroller system in hard-to-reach places or small-sized projects where a full-sized development board is not practical. The board is small in size and component count, while having the necessary features one would expect from a control board.

Users can solder the included header onto the Propeller Mini and be ready for breadboarding out of the bag. There is also the option of soldering a project’s wire leads directly to the through holes on the board to keep the control system for a project small. Users can solder sockets onto the Propeller Mini so it can plug into a proto board containing sensors and other components. Price is US$24.99.

AC TEMPERATURE CONTROLLER

Oven Industries announces the new 5R1-1400 AC temperature controller with integrated potentiometers, or via a PC through the TTL level UART communication port. This compact design (measuring 2-1/2 inches square) can deliver up to 15 amps of load current from a zero voltage switched low noise solid-state relay. Operator safety is achieved with

1 KV of AC line power isolation for the communication port and sensor input. Specifications are: input voltage 85 to 265 VAC 50/60 Hz; temperature resolution 0.1°C; and ambient temperature operation - 20° to 70°C. Features include: • Universal AC input.

• Integrated potentiometers for set temp and PI control; PC programmable set temp and PID control.

• TTL level UART • Set temp range determined by thermistor type.

• Open sensor protection.

Pricing is: 1 — $114 2 — $111 6 — $108 10 — $106

SMALLEST HANDHELD MIXED-SIGNAL RPM O’SCOPE

Saelig Company, Inc., has introduced the Xprotolab Portable — a combination of three electronic instruments: a mixed signal oscilloscope (simultaneous sampling of two analog/eight-bit/200 kHz and eight digital/1 MHz signals); an arbitrary waveform generator; and a protocol sniffer.