The Spinneret Web Server may be small — at less than 1.5 by 4 inches — but it is a feature-packed development platform. The built-in microSD card socket and real-time clock allow ample room for time-stamped file and data storage, and the oversized EEPROM can store non-volatile data for use when there is no microSD card present.
As an open-source hardware design, all designs including layout, schematics and firmware are available under licenses that allow free distribution and reuse. This means that the Spinneret Web Server's design can be incorporated into new applications royalty free and without a non-disclosure agreement.
The Spinneret Web Server is an Ethernet-based development board for the Propeller microcontroller. Web page content, files, and logs can be stored on a microSD card. The serial EEPROM has 32 KB for storing a Propeller program and 32 KB for non-volatile data storage, independent of the microSD card. There is a real-time clock controller for time-stamping files and events and a backup capacitor that will keep the clock running through extended power outages. There is a serial programming header and two auxiliary I/O connections — one is for level-shifted open collector communications over a three-pin data/power/ground cable; the other is a 12-pin socket for direct 3.3V I/O connections. There are eight status LEDs on the PCB, plus two that are duplicated on the Ethernet jack. One of the status LEDs is user controllable and shares a line with a button that can be read under user control. A second button resets the Propeller to reload the firmware from the EEPROM.
Note: Firmware is not pre-loaded. To program the Spinneret Web Server, you will need the Prop Plug. You can add a Prop Plug to your order easily using a checkbox below.
Spinneret Web Server Features
- Propeller microcontroller
- WIZnet W5100 Ethernet controller
- microSD card socket
- Real-time clock controller with backup capacitor
- Power Requirements: 3.0V to 3.6V or 4V to 9V DC, 175 mA typical when idle
- Communication Interface: 10BaseT/100BaseTX Ethernet and 3.3V to 5V asynchronous serial
- Operating temperature: -40 to +185 °F (-40 to +85 °C)
- Dimensions: 3.8 × 1.35 × 0.67 inches (9.7 × 3.4 × 1.7 cm); mounting hole centers separated by 3.5 × 1.0 inch (88.9 × 25.4 mm)
Spinneret Web Server Resources
Optional Recommended Products for this Item