[ST60 short-distance evaluation] Part 1: First release on the Internet! Detailed evaluation!

w494143467

[ST60 short-distance evaluation] Part 1: First release on the Internet! Detailed evaluation! [Copy link]

1. Introduction

I have been studying ST60 for a while. ST's tour also demonstrated the functions of ST60. I was attracted by this technology. I was very happy to be able to get in touch with it at EEWORLD. After receiving the board, I decisively started to evaluate it.

2. Introduction of ST60

I received SK202 (ST60 evaluation board), which is two evaluation boards in total. The boards are not big, and the ST60 chip is even smaller. Let's take a look at the combined photo of the two.

Figure 1

Figure 2

This module is slightly different from the one provided in the official manual. A Micro USB interface is added, which makes the power source of the module more convenient. The following is an overall introduction to the module.

Figure 3

Before testing, you need to prepare two Micro USB power cables, two network cables, and two PCs.

3. Build the environment

The setup environment is very simple. It is just a basic connection. Connect the Micro USB power cable and supply power. Then connect one end of the network cable to the PC and the other end to the module, as shown in Figure 4.

Figure 4

At this time, check the speed of the network port. 1.0GHz is a Gigabit interface. The official statement is that the communication speeds at both ends must be consistent. For example, if the other PC only supports 100MHz, the Gigabit PC needs to be reduced to 100M, otherwise it cannot be used normally.

Figure 5

4. Communication test

First, check the IP address of a PC. Here the address is [169.254.77.72].

Figure 6

Then place the modules as follows. The wireless transceiver ports need to be aligned together, as shown in Figure 7 below. The distance between modules is 1CM.

Figure 7

At this time, use another PC to use the Ping command to test the communication, and the communication is normal.

Figure 8

Increase the two modules indirectly to 4CM, as shown in Figure 9 below.

Fig. 9

Test the communication again and it is normal.

Fig.10

Increase the distance to 5CM, as shown in Figure 11 below.

Fig.11

Test communication and find that the request timed out.

Fig.12

5. Summary

In fact, 5CM is not the farthest distance. The module needs to adjust the angle to still communicate. However, the angle requirement for the two modules is relatively large. The module is very convenient to use and the distance is relatively short. However, I don’t know how the penetration and stability are. We will test it in the next article!

chunyang

It seems to be suitable for big data interaction between mobile terminal devices such as mobile phones, tablets, and notebooks. It is also suitable as a contactless wireless transmission interface for mobile hard disks/U disks. It is more convenient than BLE and more flexible than NFC. In view of this, it is recommended that the host first conduct a transmission rate test, and then test the available transmission distance and coupling angle requirements at different speeds.

freebsder

4cm is not far, why do we need to align the direction? Is this technology geeky?

bobde163

How does microwave radar work?

liao0418

Good, thanks for sharing

w494143467

freebsder posted on 2022-1-10 15:35 4CM is not far, but do you still need to align the direction? Is this technology geeky?

Perfect for special occasions.

w494143467

bobde163 posted on 2022-1-11 13:46 What is the principle of using microwave radar?

Millimeter wave technology

freebsder

w494143467 posted on 2022-1-25 10:23 Suitable for special occasions.

For example? It’s hard to imagine the scene...

tinnu

freebsder posted on 2022-1-26 19:19 For example? It’s hard to imagine the scene. . .

Scenarios with high insulation requirements and safe data transmission