Data Sheet

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Data Sheet of WJ-M101

Bluetooth Module

1. Description

WJ-M101 Bluetooth low energy single mode module is a single mode device targeted for low power

sensors and accessories.

WJ-M101 offers all Bluetooth low energy features: radio, stack, profiles and application space for

customer applications. The module also provides flexible hardware interfaces to connect sensors.

WJ-M101 can be powered directly with a standard 3V coin cell batteries or pair of AAA batteries. In

lowest power shutdown mode it consumes only 0.5 uA and will wake up in few microseconds.

WJ-M101 transmission distance of 30 meter. (At face to face, free space, 1.2 Meter high from Ground

for testing).

Bluetooth IC：TTC2541 6*6*0.9mm 40pin IC / use TI CC2541 IC chip

1-1.APPLICATIONS:

Heart rate sensors

Pedometers

Watches

Blood pressure and glucose meters

Weight scales

Key fobs

Households sensors and collector devices

Security tags

Wireless keys (keyless go)

Proximity sensors

HID keyboards and mice

Indoor GPS broadcasting devices

1-2.KEY FEATURES:

Bluetooth BLE v.4.0 single mode compliant

Supports master,slaveand master/slave modes

Integrated Bluetooth low energy stack

GAP, GATT, L2CAP, SMP Bluetooth low energy profiles

Compliance: BQB BLE4.0, FCC, IC(Canada), CE ETSI RED…etc. worldwide RF Regulations.

Transmit power :+0dBm typical

Receiver sensitivity: -94dBm typical

In-System-Programmable Flash 256KB SRAM 8KB

Low current consumption :Shutdown. No clocks running, no retention: 0.5uA(Typical)

2. WMD410A01SR6A0 (HY-254101) PCBA dimension size and picture

(PCBA dimension size : 15.2*25.3*2.0 mm).

Summary of content (11 pages)

PAGE 1
Data Sheet of WJ-M101 Bluetooth Module 1. Description WJ-M101 Bluetooth low energy single mode module is a single mode device targeted for low power sensors and accessories. WJ-M101 offers all Bluetooth low energy features: radio, stack, profiles and application space for customer applications. The module also provides flexible hardware interfaces to connect sensors. WJ-M101 can be powered directly with a standard 3V coin cell batteries or pair of AAA batteries.
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3. Application Note: 3-1.Attention to the electrostatic protection, prevent the soldering iron and the equipment grounding bad; And the workbench, working environment, packaging materials and from the human body Touch with static electricity, etc., destroy IC and software be fly; Manual welding module solder iron temperature, should pay attention to avoid the PCB copper stripping off;Soldering iron strictly Grounding requirements, eliminating iron power failure module; 3-2.
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-7.Assembly recommendation 1:Underneath the module antenna and RF circuit on the main board PCB copper need to clearance, and place close to the main board edge, as show in below Fig. The antenna can't be near around metal parts and prevent material existence of electromagnetic radiation, Can affect the manipulation of the distance. 3-8. Assembly recommendation 2:Signal trace and power supply trace, don't cross layout, as show in below Fig.To avoid crosstalk, affect the receiving sensitivity. 4.
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（4-2）Pin function table (Not shown in the I/O pin functions ,Please see Table(4-3) input and output ports description)
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Pin Function Description (The module following collectively "BLE"): a. UART: serial bus, the default baud rate 9600bps, a single packet transmission is less than 17 bytes, package transmission intervals greater than 20ms. b. SPI: SPI bus interface, support for less than 2M / S data transmission rate, a single packet transmission is less than 17 bytes, package transmission intervals greater than 20ms. c.
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DIR2 NC NC NC NC NC 1 DIR3 NC NC NC NC NC NC Note: BITx = 0 is corresponds port input , BITx = 1 is corresponds port output . 2 6 3 11 PWM port pin No. PWM5 PWM4 PWM3 PWM2 PWM1 PWM0 16 8 9 10 14 15 ADC port pin No. ADC7 ADC6 ADC5 ADC4 ADC3 ADC2 ADC1 ADC0 16 17 18 19 20 21 22 23 Note: The Blue Numbers of the corresponding port pin No. applications of all kinds, For example:IO0/bit0 or ADC0 pin is corresponding module pin No.23 5.
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5-3. ESD Ratings 5-4. Recommended Operating Conditions Supply voltage noise should be less than 10mVpp. Excessive noise at the supply voltage will reduce the RF performance. Note: (1).VDD power supply recommended voltage : 2.7~3.3V (2).When programming firm ware , the VDD supply voltage must in DC 2.4~3.3V, To avoid programming has not completely, or abnormal status occur.. (3).
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8.
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9. Recommend Reflow Profile( Leadless solder cream: Sn 96.5%, Ag 3%, Cu 0.
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FCC Statement This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.