DLP-232PC

Overview

The DLP-232PC is a miniature USB-to-microcontroller module designed for data acquisition and process control. It integrates an FTDI FT232R USB interface chip with a PIC18F2410 microcontroller, powered directly via the USB port. The module provides 14 configurable I/O channels accessible through a standard 18-pin 0.3-inch DIP header. These channels support digital input/output, analog voltage measurement (0-5V range on Channels 1-8), and temperature sensing using external DS18B20 sensors. Communication occurs over a virtual COM port at a baud rate of 460,800 using single-byte ASCII or binary commands.

Feature Summary

• FTDI FT232R USB to UART bridge providing USB 1.1/2.0 compatibility
• PIC18F2410 microcontroller with ICSP programming interface
• 14 configurable I/O channels: Digital I/O, Analog In (0-5V), Temperature
• Single-byte command set for simple terminal emulator control

Applications

• Data Acquisition Systems
• Industrial Process Control
• Process Monitoring

Procurement Notes

Verify that the specific unit matches the DLP-232PC model number. Confirm the presence of the 18-pin 0.3-inch interface header and the Mini USB Type 'B' connector. Ensure the firmware version aligns with the Rev 1.6 datasheet specifications regarding command sets and A/D setup sequences.

Selection Notes

Select this module when a compact USB-based solution is required for mixed-signal data acquisition. It is suitable for applications needing up to 8 analog inputs and multiple digital I/O lines without complex driver development. Note that analog channels must be activated sequentially starting from Channel 1.

Part Context

This module belongs to the DLP Design line of USB-to-microcontroller modules. It utilizes the FT232R chip for USB connectivity and the PIC18F2410 for processing. The design emphasizes a small footprint (1.375 x 0.6 inch PCB) and ease of use through simple serial communication protocols.

Replacement Considerations

No direct public substitute part numbers are documented in the provided source material. Alternative solutions would require evaluating other USB-to-UART bridges combined with microcontrollers and custom firmware.

FAQ

How are analog channels configured?

Analog channels must be activated in sequential order starting with Channel 1. For example, to use two analog channels, both Channel 1 and Channel 2 must be enabled.

What type of sensor is required for temperature measurements?

A DS18B20 digital temperature sensor is required. The PAR versions (DS18B20+PAR) are not compatible with the firmware.

What is the default communication baud rate?

The default baud rate is 460,800 with 1 start bit, no parity, 8 data bits, and 1 stop bit.