HM-TRP Series 100mW Transceiver modules V1.0

7

77

7

Tel: +86-755-82973805

Fax: +86-755-82973550

E-mail: sales@hoperf.com

http://www.hoperf.com

HM-TRP-868D(S)

869.000

9.600

105

35

+20

9.600

HM-TRP-915D(S)

915.000

9.600

105

35

+20

9.600

Table 3: Original default parameter

10.

10.

10.

10.

TTL & RS232 Typical Application

Figure 3.HM-TRP TTL UART Application

In Figure 3, connect the DTX pin of HM-TRP with UART RX Pin of MCU, connect the DRX pin of HM-TRP

with the UART TX pin of MCU. Then the CONFIG & ENABLE of HM-TRP connects with the GPIO of MCU,

thus the minimal application of TTL is set up.

Figure 4. HM-TRP extends to RS232 application

In Figure 4, you can extend the HM-TRP to RS232 with adding the MAX3232, then you can directly connect the

COM to the PC.