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Summary of Contents for USR IOT USR-GPRS232-7S3
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Page 1: Usr-Gprs232-7S3 Hardware Manual
USR-GPRS232-7S3 Hardware Manual www.usriot.com USR-GPRS232-7S3 Hardware Manual File version: 1.0.0 Jinan USR IOT Technology Limited 1 / 9 h.usriot.com... -
Page 2: Table Of Contents
USR-GPRS232-7S3 Hardware Manual www.usriot.com Content USR-GPRS232-7S3 Hardware Manual ......................1 Product Overview ..........................3 1.1. Dimension ...........................3 1.2. Pin Defination ........................3 Hardware Design ..........................5 2.1. Power Interface ........................5 2.1.1.DC 5-16V ...........................5 2.1.2.DC 3.6-4.4V ........................5 2.2. UART Interface ........................6 2.3. Shut down ...........................6 2.4. -
Page 3: Product Overview
USR-GPRS232-7S3 Hardware Manual www.usriot.com 1. Product Overview 1.1. Dimension Dimension figure as follows（Unit:mm）: 1.2. Pin Defination Jinan USR IOT Technology Limited 3 / 9 h.usriot.com... - Page 4 6s restore to factory default setting. RESET Reset module,take effect in low level. Pull down pin to restart the module. MIC_P Audio input P MIC_N Audio input N RCV_P Audio output P RCV_N Audio output N Jinan USR IOT Technology Limited 4 / 9 h.usriot.com...
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Page 5: Hardware Design
When module adopts 4V power(at present, voltage input range from 3.6-4.4V, do not beyond this range), pin 16 is used to power module. Connect to bypass capacitor to make module work stably. Circuit diagram as follows: Jinan USR IOT Technology Limited 5 / 9 h.usriot.com... -
Page 6: Uart Interface
MCU. V-PAD is the I/O power of module, user can use it to UART matching and pull-up power. Converting circuit as follows: 2.3. Shut down This is a optional interface. If user don’t need shut down the module in working status, this pin must be Jinan USR IOT Technology Limited 6 / 9 h.usriot.com... -
Page 7: Work/Link Indicator
NET:Indicating GPRS status. High Level (LED: on): module connect to GPRS network;Low level (LED: off): Module disconnect to GPRS network. DATA:Indicating data communication status. High Level (LED: on): Data is transmitting or receiving; Low level (LED: off): No data transmission. Circuit diagram as follows: Jinan USR IOT Technology Limited 7 / 9 h.usriot.com... -
Page 8: Audio Interface
Circuit diagram as follows: When input/output audio signal by microphone/loud-speaker, user can refer to related audio design materials to handle the audio signal by connecting amplifying circuit. Circuit diagram as follows: Jinan USR IOT Technology Limited 8 / 9 h.usriot.com... -
Page 9: Contact
4. Disclaimer This document provide the information of USR-GPRS232-7S3 products, it hasn’t been granted any intellectual property license by forbidding speak or other ways either explicitly or implicitly. Except the duty declared in sales terms and conditions, we don’t take any other responsibilities. We don’t warrant the products sales and use explicitly or implicitly, including particular purpose merchantability and marketability, the tort liability of any other patent right, copyright, intellectual property right.
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