Summary of Contents for USR IOT WH-BLE103
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Page 1: Wh-Ble103 Hardware Manual
WH-BLE103 Hardware Manual www.mokuai.cn WH-BLE103 Hardware Manual File version: V1.0.0.01 Shanghai wenheng electronic technology limited 1 / 10 h.usriot.com... -
Page 2: Table Of Contents
WH-BLE103 Hardware Manual www.mokuai.cn Content WH-BLE103 Hardware Manual ............................1 1. Product overview ................................2 1.1. Dimension ................................3 1.2. Encapsulation ..............................3 1.3. Pin definition ..............................4 2. Hardware design ................................5 2.1. Typical connection ............................5 2.2. Power interface ..............................6 2.3. -
Page 3: Dimension
WH-BLE103 Hardware Manual www.mokuai.cn 1.1. Dimension Module dimension diagram as follow: Figure 1 Dimension diagram 1.2. Encapsulation Shanghai wenheng electronic technology limited 3 / 10 h.usriot.com... -
Page 4: Pin Definition
WH-BLE103 Hardware Manual Figure 2 Encapsulation 1.3. Pin definition Name Signal type Definition nReload Pull down to low level 3 seconds to 10 seconds can reset module to default settings. Shanghai wenheng electronic technology limited 4 / 10 h.usriot.com... -
Page 5: Hardware Design
WH-BLE103 Hardware Manual Wake Pull down to low level over 1 second to wake up module GPIO1 General IO1. Control pin of serial port downloading. AD acquisition pin. GPIO2 General IO2. VBAT Power supply pin. Voltage range: 1.7V~3.6V. SWCLK SWD clock pin. -
Page 6: Power Interface
WH-BLE103 Hardware Manual www.mokuai.cn Figure 4 Typical connection 2.2. Power interface Working voltage range from 1.7V to 3.6V, 3.3V is recommended. Peak current is 30mA. Pin has reserved high frequency filter capacitance and 10uF+0.1μF+1nf+100pf is recommended. If the application environment is bad, module will often suffer ESD interference or EMC requirement is high, series connection with magnetic bead or parallel connection with TVS is recommended to increase module stability. -
Page 7: Nreset And Nreload
WH-BLE103 Hardware Manual www.mokuai.cn This level switching circuit can support baud rate to 230400. If user adopts 460800 or above baud rate, user Figure 5 Switching circuit needs to use high speed optocoupler or specialized level switch chip to establish level switching circuit. -
Page 8: Wake Up Pin
WH-BLE103 Hardware Manual www.mokuai.cn 2.5. Wake up pin Pin 2 of module is wake up pin and will take effect in low level over 1 second. User doesn’t need to connect to external pull-up resistor. 2.6. RF interface RF interface adopts two methods: internally installed antenna and external bonding pad pin antenna. We provide internally installed antenna WH-BLE103a and external bonding pad pin antenna WH-BLE103b. -
Page 9: Wh-Ble103B
WH-BLE103 Hardware Manual www.mokuai.cn 2.6.2. WH-BLE103b User needs reserved π type match circuit on PCB board. RF line need guarantee 50ohm impedance matching and try to be short to reduce attenuation of signal. User can refer to below reserved match circuit: Figure 9 WH-BLE103b reserved match circuit 1.Module is recommended to be placed on edge of PCB board to shorten the distance to antenna and this can... -
Page 10: Contact
4. Disclaimer This document provides the information of WH-BLE103 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 merchant-ability and marketability, the tort liability of any other patent right, copyright, intellectual property right.
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