N/A

A general purpose 40 pin 8051 evaluation board with just the bare essentials required for using a 8051 microcontroller - port extentions, crystal circuit, reset switch, power status and a general purpose LED. This board is perfect for building rapid prototypes and projects. The board provides port extensions for all ports and also provides an empty hole for each IO, where wires and connectors can [..]

Using oxygen recombination technology : maintainance free. PbCaSn alloy for plate grids: less gassing, less self-discharging. High quality AGM separtor: extend cycle life and prevent micro short circuit. ABS material : increase the strength of battery container. (flame-retardent ABS is optional). High purity raw material : ensure low self discharge rate. Silver-coated copper terminals (T1, T2[..]

This small board has been designed to convert TTL (Transistor-Transistor Logic) level signals to RS-232 interface and vice versa. This allows the user to develop applications so that the board will act as an intermediate for the communication between the two devices that follows TTL and RS-232 standard. The TTL side is a 4-pin connector and the RS-232 side is a 9-pin female connector. if the board[..]