AS TFmini Plus User Manual

Switch Value Output of TFmini Plus v1.0
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Switch Value Output of TFmini Plus
1 Introduction
For the performance and considerations of TFmini Plus, please refer to the corresponding
specifications and manual. This manual is only a reference for modifying the TFmini Plus to a
switch value signal output. The switch value here is the active signal (step signal) 0 or 1. The
corresponding voltage of 0 is 0V and that of 1 is 3.3V.
2 Line Sequence
The TFmini Plus has four connection lines, which are 5V power line, GND, receive line (RXD),
and transmit line (TXD). The switch value signal is given by the transmit line (TXD) and forms a
reference voltage with GND.
Table5: The Function and Connection Description of each pin
No.
Color
PIN
Funciton
Comment
1
red
+5V
Power supply
Positive
2
blue
TXD
Transmitting
High and low level detection
3
White
RXD
Receiving
4
Black
GND
Ground
Ground
TFmini Plus has a 30cm long connecting wire with a GH1.25-4P (Molex51021-0400)
connector. The connecting wire can be extended as needs. To ensure effective data transmission, the
length of connecting wire should be short than 1m.

AS TFmini Plus Specifications

General

Distance Resolution	1 cm
Enclosure Rating	IP65
Measurement Range	0.1m - 12m
Frame Rate	1 to 100 Hz
Operating Voltage	5 V
Power Consumption	0.5W (typical)
Communication Interface	UART
Operating Temperature	-10 to 60 °C
Storage Temperature	-20 to 70 °C
Ambient Light Immunity	100K Lux
Current Consumption	100mA (typical)

Summary

Introduction

Line Sequence

Judgment Logic and Signal Output

Modification of Switch Value Threshold

Required Tools for Product Test

Lists the necessary hardware for testing and modifying the TFmini Plus.

Test Procedures

Outlines the steps for connecting and preparing the TFmini Plus for testing.

Commands Configuration and Description

Disable Data Output Command

Command to turn off input/output to prevent conflicts during configuration.

Setting Output Mode of Switch Value

Configures switch value mode, critical value, and hysteresis for output. Includes examples.

Enable Data Output Command

Command to enable output and start measurements after configuration.

Restore Factory Settings

Command to reset the device to its original factory configuration.