JED Micro
Designers and manufacturers of audio/visual and industrial controllers in Australia

Wilke Tigers and JED Single Board Computers

This group uses the Wilke Tiny Basic and E-Tiger CPU modules

Tigers are small computer modules designed for embedded applications: they run BASIC (compiled on a PC and downloaded via an RS232 serial cable). These little matchbox sized beauties have two serial ports, 4 channel, 10-bit analog inputs, direct LCD connection with powerful drivers for text (4 line by 20) and graphics (e.g. 128 by 240 pixels). On board is range of FLASH memory (128 kB to 4 MB) and CMOS RAM (32kB to 2MB). The RAM and a real-time-clock (with alarm) can be battery-backed with a lithium battery.

LCD with TigerWith their multiple I/O pins and ease of interfacing to both device pins directly (via low-level I/O commands), and to extended I/O using pins 1 to 7 (port 60..67) as an address/data bus (using IN and OUT instructions), the Tigers connect via external decoders and latches to nearly 2,000 digital I/O bits. An LCD display just connects to this bus, and bits used as E and RS strobes give easy text and graphics LCD interfacing with built-in driver support.

The BASIC in Tigers is fast, efficient: it is compiled (not tokenised). Variable types are unsigned byte and 16-bit word, signed 32 bit double and 64 bit floating point. As an example, 32 by 32 multiply takes 20 microseconds, and a 64 bit floating point SIN only takes 3 milliseconds. 32-Task multitasking is built in.

The BASIC Tiger and Tiny Tiger modules are similar - the Tiny Tiger (60mm by 28mm by 10.5mm, with 44 pins) can have up to 2MB of FLASH and 512 KB CMOS RAM, the BASIC Tiger (63mm by 41mm by 12mm, with 46 pins) can have up to 4 MB of FLASH and 2 MB of CMOS RAM.

E TigerThe Economy Tiger (39mm by 28mm by 10.2mm with 28 pins) is now available in Australian stock.  These range from the ENN-R/4 device with 512kb FLASH and 32 kbyte RAM), to units with 512kB FLASH, 512kB RAM. An adapter is available allowing the ENN 28 pin Tiger to plug into a Tiny Tiger socket (eg on the prototype board) for development purposes. A PDF data sheet with pinout is available: ENN-Tiger. Three JED boards support the E-Tiger ... see below.


LCD with Tiger

The newer Tiger II (also 39mm by 28mm by 10.2mm) is now available in Australian stock:

  • 2 MByte or 4 MByte FLASH for program and data
  • 1 MByte SRAM with Backup Input
  • 56 I/O Lines overall
  • 40 universal digital I/O bitwise programmable as In- or Output, Expansion Bus, Timer, Counter and Encoder
  • 2 serial UART-interfaces with Hardware Handshake
  • Multi-channel serial Soft-UART with or without Handshake
  • 12-channel 10 bit Analog/Digital Converter Inputs
  • CAN Bus 2.0
  • I2C Bus, SPI, Microwire
  • 2-channel PWM
  • Real Time Clock, ultra low power with separate Battery input and alarm output
  • Fast downloads: Standard download with 115,200 baud, Fast Download with 307,200 baud.



The JED TIG-501 is a 100mm by 115mm board with 12 in, 13 out, with 4 analog in, all on screw-terminal I/O  and a medium-Xilinx 5202, 5204 or 5206 gate array for custom logic. This board also supports a 4-line by 20 text LCD display, and either 5 push-buttons or an off-board 20-key scanner. The TIG501 card also supports two, 1-Wire interface channels, with the option of top drive for communication with multiple DS1820 or DS1920 temperature sensors or iButtons. The LCD display has a small 5-key keyboard below, and the whole LCD/keyboard assembly fits over the TIG501 on pillars. For a data-sheet download this file TIG501.PDF. For a photo, see: Photo-501.

LCD with Tiger

The JED TIG-505 is a 110mm by 160mm board and has screw terminals down both long sides (with 4 analog inputs and 20 digital inputs along the top and 24 open-drain outputs along the bottom. (4 can become a quad analog output port). Digital logic in a Xil5204, 5206 or 5210, 160-pin gate array allows a wide range of logic to be put in-between the inputs and outputs and the microprocessor. At one end are two RS232, (one optionally RS485) serial ports. As an option this board can drive a 4 line by 20 char LCD display and scan a 20-key keyboard. Mechanically, it can mount on a flat panel or gear plate inside a control cabinet, or it can mount cleanly on a front panel as a controller, with all I/O terminals out the back, protruding through a metal case. The TIG505 card also supports four, 1-Wire interface channels, with option of top drive for communication with multiple DS1820 or DS1920 temperature sensors or iButtons.

Updated versions of the TIG505 Xilinx gate array add, for example, one or two 32 bit up-down counters (with quadrature phase detector and capture registers) ... this is an example of how Tigers can connect very simply to Xilinx gate arrays adding clever hardware for data acquisition or control functions.

A TIG505 data-sheet is available for download:TIG505.pdf For a photo, see:Photo-505