[ST60 short-distance test] Part 3: Analysis of obstacles and application scenarios

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[ST60 short-distance test] Part 3: Analysis of obstacles and application scenarios [Copy link]

1 Introduction

After the rate test, the next step is to test the obstacles. In real applications, there will be a shell connecting the two devices, so which shells need to be tested.

2. Testing

A total of N materials were tested, with varying thicknesses and methods, for a total of 18 tests. The results are as follows:

Figure 1: No obstacles

Figure 2: A piece of tissue paper

Figure 3: A piece of A4 paper

Figure 4: Four A4 sheets of paper

Figure 5: Eight sheets of A4 paper

Figure 6: Sixteen sheets of A4 paper

Figure 7: A 15-page product selection book for an instrument

Figure 8: 22 pages of a product selection book for an instrument

Figure 9: A 30-page guide to electric motors

Figure 10: A 50-page guide to electric motors

Figure 11: A complete motor guide 8mm

Figure 12: Four connecting wires

Figure 13: A row of six DuPont wires

Figure 14: A plastic bag

Figure 15: A bottle of water is passed during the communication process

Figure 16: Sweeping across the shielding bag during communication

Figure 17: Wiping across the board during communication

Figure 18: ST development board housing

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ST60 Test Results

Serial number	Test content	Packet loss results
1	none	0%
2	A piece of tissue paper	0%
3	One piece of A4 paper	0%
4	Four sheets of A4 paper	0%
5	Eight A4 sheets	0%
6	Sixteen sheets of A4 paper	0%
7	A 15-page product selection book for an instrument	0.043%
8	A 22-page product selection book for an instrument	28%
9	A 30-page guide to electric motors	0.89%
10	A 50-page guide to electric motors	25%
11	A complete motor guide 8mm	45%
12	Four connecting wires	0.032%
13	One row (six) of Dupont wires	34%
14	A plastic bag	0.032%
15	A bottle of water was passed during the communication	52% (packet loss due to water 100%)
16	Passing through the shielding bag during communication	31% (100% packet loss with shielding bag)
17	Sweeping across the circuit board during communication	25% (100% packet loss in case of circuit board loss)
18	ST development board housing	39%

3. Conclusion

As expected, the interference of general materials to ST60 is very small, but it is not clear why the product shell of ST development board has such a big interference. Is it a shielding effect? It is normal for shielding materials to interfere with communication.

So what are the application scenarios of this module? I think it is mainly high-speed and close-range applications, such as rotating LED lights. This application is also an official sample. Rotating cameras (lithium batteries) are meaningless if the power cord is plugged in. There is also a combination screen. A super large screen requires several screens to be combined. The most important thing is to transmit video data. In future technology, there will definitely be a place for ST60 connectors!