AS TFmini Plus Quick Start Manual

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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.

No.

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.

A10,Keshi Building, No.28, Xinxi Rd, Haidian district, Beijing, China. 100084

Switch Value Output of TFmini Plus

Table5: The Function and Connection Description of each pin

Color

red

+5V

blue

TXD

White

RXD

Black

GND

Funciton

Power supply

Transmitting

High and low level detection

Receiving

Ground

Comment

Positive

Ground

v1.0

Page1

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Summary of Contents for AS TFmini Plus

Page 1 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.
Page 2 Assuming that the TFmini Plus detection threshold is 2m. When the measurement value of TFmini-Plus is less than 2m , in other words, there is an object within 2m in front of TFmini Plus, the TXD output is high level (3.3V); and when the measurement value of TFmini-Plus is beyond 2m , the TXD output is low level (0V).
Page 3 Select the port which the radar is connected, and check “Open Serial Port”, confirm the baud rate is 115200. Then click the [Extension], and displayed as follows: Fill in commands in this blank position (the commands refer to Chapter 4.3) and check HEX.
Page 4 Switch Value Output of TFmini Plus v1.0 When you need to send a command, click the button on the right side of it, as shown below: Fig.5 send commands 4.3 Commands Configuration and Description 1. 【Disable data output】Turn off the input and output enable of TFmini-Plus, stop the measurement program to prevent program conflicts when modifying the configuration.
Page 5 Switch Value Output of TFmini Plus v1.0 102cm, the output state changes to long-distance state; ② the original state is long-distance state, and when the measurement distance＜100 cm, the output state changes to close-distance state. Command: 5A 09 3B EE FF GG HH KK 00. Among them, EE FF GG HH KK needs to be modified.
Page 6 Switch Value Output of TFmini Plus v1.0 output level is high; and when the threshold＞100, the output level is low.) the command is: 5A 09 3B 01 5E 01 05 00 00  threshold is 400cm, hysteresis range is 10cm (When the threshold＜100, the output level is low;...