Discontinued Items

After over 35 years of development and helping other designers and engineers, The Workbench site will be closing due to age and retirement of members. Sales of certain items in stock will continue until depleted. The basic site will remain open for some time for item documentation. If you have any special request please email.

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The following items have been discontinued. However, if you have need of an item shown below, please email me just in case there are still some items left over.

Kit includes pcb and MMC socket

Typical MultiMediaCard ( not included)

MMC Proto

QFP80CA Carrier

On the left, a small (1.3x1.3”) QFP 80 pin carrier board for the PIC18Fxx20 mcus. All pins are on 0.1” spacing.

MMC-ADP1 (discontinued)

MMC-ADP2 (discontinued )

Small MMC holder with 2x5 header. When mounted with a female header this plugs directly the port headers on the STK500 board.

Similar to the holder on the left except the pins are arranged in a straight line to correspond with the SS,SC,SO and SI pins on a Mega163L or similar part running at 3.3vMMC.

The AVR_M is a very compact self contained AVR controller board. It includes an on-board serial programmer (via PC com port) . The  AVR can be programmed without removing it from the board. an I2C eeprom and can use a Mega323, Mega163,Mega16 or a AT90S8535 directly. Other AVRs can also be used with 40pin carrier boards. All ICs have  sockets.

AD321A Designed to accomodate large LCD displays by providing -36v for the LCD drivers. Uses Max637 ICs.

AD321B similar to AD321A but provides a maximum of -24v. It utilizes a pre-assembled TDK CE73 inverter. Works with the G321D 320x200 display.


The AVR_PG1 serial programmer contains an AT1200 serial ISP program and a Max233 (or equiv) RS232 IC. The standard 2x3 ISP header is provided. It also provides separate RX/TX pins for RS232 serial I/O. It is powered by the target board via the 2x3 ISP header or can be powered separately. The AT1200 contains  programming code. AVRs can be programmed using Atmels serial ISP software and can be run in BascomAVR’s IDE by selecting the External Programmer option.


AT45DB041 4mbit DataFlash IC

Development board with a programmable PIC16F872 for serial 1 wire connection.Use with 1,2,3 or 4 line displays. Four line character LCD shown on the left.

A small USB board based on FTDI’s FT232BM chip. Allows microcontroller TTL serial I/O via an RS232 USB connection. Ideal for a microcontroller project TTL to RS232 via a USB connection to a PC. Requires assembly


Web Dev Board

An affordable PIC network development board based upon Microchip’s TCP/IP Stack . Can also be used in conjunction with Jeremy Bentham’s TCP/IP Leanbook. Requires assembly

Web Dev 2 Board Kit


Similar to the Web Dev board as shown above, except this is a 3.3v board which uses Microchip’s ENC28J60 ethernet controller IC that is interfaced to a socketed PIC18LF4620 mcu this makes it easy to use other 40 pin LF PICs.  It also Includes a 3.3v reg, 24LC256 I2C eeprom and a 3.3v RS232 chip.Email if interested in this kit.

pUSB dev board

A compact USB development kit based on Microchip’s PIC16C765 microcontroller with demo programs written in PICBasicPro. Can also be used with a PIC18F4550 with minor modification.  Requires assembly

UVNC1 USB Host development board based on the FTDI Vinculum VNC1L chip. The board has one USB Type A connector and provisions for a second on. The board also has a Serial TTL header for communication via RS232 or SPI with any mcu. The VNC1L chip is reprogrammable with firmware and utilities from Vinculum website. Using simple commands one can read, write, delete, files and folders on most USB flash drives. Like those used with notebooks and PC’s.The kit has on on-board 5v and 3.3v regulators.


UVNC1 Host kit shown assembled

Windows interface applications

Freedownloads in the Benchware section






GLTools Ver 1.5

MMC I/O Ver 1.0

BascomAVR Projects

Atmel micro controller based projects using Bascom-AVR

Sed1330F 256x128 Graphic LCD using an Atmel AT90S8535 micro. Code written in BascomAVR 1.11.62 by mcselec.com


Shown assembled with an SD card (card  not included )

The 3.3v AVR_SD3 development board includes an AVR163L (or optional Mega32L ). The SD socket can also use MMC cards. Includes a standard DB9 RS232 connector for I/O.The AVC mcu can be programmed ‘in-circuit’ by using one of Atmel’s ISP programmers. All the AVR pins are available at (standard 0.1” spacing).More info....

The AVR_SD3 is a very compact 3.3v AVR controller board with an SD/MMC card socket. It can work with most 40 pin AVR-L mcus such as the  can use a Mega323L, Mega163L, Mega16L, Mega32L or a AT90LS8535 .Other “L” series AVRs can also be used with 40 pin carrier boards. The board has a standard Atmel 6 pin ISP programming header. It can be programmed using Atmels serial ISP hardware which is also compatible with the BascomAVR compiler. The board has a Max3232 RS232 IC, an I2C eeprom, 4mhz resonator, 3.3v Regulator, and a reset switch.


All Rights Reserved, Copyright (c) COMPSys , 2018

Updated on:

February 16, 2018 

Windows is a registered trademark of Microsoft Corporation. PICMicro is a registered trademark of Microchip Inc.

AVR is a registered trademark of Atmel Corp., MAX is the trademark of Maxim Corporation