HY-254101 Bluetooth BLE Module Specifications (User manual) 1.Description HY-254101 Bluetooth low energy module is a single mode device targeted for low power sensors and accessories. HY-254101 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. HY-254101 can be powered directly with a standard 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. Bluetooth ICTTC2541 6*6 40pin IC / use TI CC2541 IC dice 2.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 Indoor GPS broadcasting devices 3.KEY FEATURES:
Bluetooth BLE 5.0 single mode RF physics charactics compliant Supports master,slave and master/slave modes Integrated Bluetooth low energy stack GAP, GATT, L2CAP, SMP Bluetooth low energy profiles Compliance: BQB , FCC, IC(Canada), CE ETSI REDetc. worldwide RF Regulations. In-System-Programmable Flash 256KB SRAM 8KB Low current consumption :Shutdown. No clocks running, no retention:
0.5uA(Typical)
(4). Dimensions Size and FCC ID/ IC ID print word:
PCBA SIZE 15.2 * 25.3 *2.5 mm
(5)HY-254101 Module Working mode schematic :
(6). Electrical characteristics
(With Ta = 25 , VDD = 3.3V, standard measure: 1Mbps , 250KHz GFSK modulation , Bluetooth Low energy mode.) 1. Modulation Mode: GFSK;
2. Frequency range: 2402~2480MHZ (2.4G ISM band);
3. Operating ambient temperature range: -40 ~ + 85 ;
4. The storage temperature range: -40 ~ + 125;
5. Receiving mode current (high gain setting): 20.02 mA (typical);
6. Transmit mode current ( at 0dBm output setting ): 18.2 mA (typical);
7. MCU law active current (only 32MHz operation of X-tal OSC):6.7 mA (typ);
8. Power mode 1: The current consumption: (under MCU standby mode, the wake-up time = 4uS); I= 270uA (Typical);
9. Power mode 2: THE current consumption in sleep mode.timer activate / enable, wake-up time can by the programming software setting): I = 1uA (typ);
10. Power mode 3: The current consumption :( Low power deep sleep mode, by the hardware initiative wake ): I = 0.5uA(Typical);
(6-1HY-254101 PCB Antennapin map 6-2Pin function table (Not shown in the I/O pin functions ,Please see
(6-3) input and output ports description) PinNo. Function Function Description 1 2 3 IO2_2 / DC IO2_1 / DD IO2_0 Digital I/O port 2_2 / Debug clock Digital I/O port 2_1 / Debug data Digital I/O port 2_0 4 IO1_7 / SEL1 Digital I/O port 1_7 MCU communication mode select, See table(5-3) Communication protcol mode selection, I/O setting Table 5 IO1_6 / SEL0 IO3_1 /
I2C SCL Digital I/O port 1_6 MCU communication mode select, See table(5-3) Communication protcol mode selection, I/O setting Table Digital I/O port 3_1 IIC serial Clock (SCL) can be used as I2C clock pin or digital I/O. Leave floating if not used. If grounded disable pull up Digital I/O port 1_5 IO1_5 IO1_4 / PWM4 Digital I/O port 1_4 / PWM port 4 IO1_3 / PWM3 Digital I/O port 1_3 / PWM port 3 6 7 8 9 10 IO1_2 / PWM2 Digital I/O port 1_2 / PWM port 2 11 IO3_0 / I2C SDA 12 GND 13 VCC Digital I/O port 3_0 I2C serial Data (SDA) Can be used as I2C data pin or digital I/O. Leave floating if not used. If grounded disable pull up BLE module grounding pin BLE module power supply pin, voltage range of 2.0 ~ 3.6V 14 IO1_1 / PWM1 15 IO1_0 / PWM0 16 IO0_7 ADC7 PWM5 IO0_6 Digital I/O port 1_1 20mA drive capability
/ PWM port 1 Digital I/O port 1_0 20mA drive capability
/ PWM port 0 Digital I/O port 0_7 ADC port 7 PWM port 5 Digital I/O port 0_6 17 INT Interrupt output pin ADC 6 IO0_5 ADC port 6 Digital I/O port 0_5 18 SPI SCK ADC 5 IO0_4 WAKEUP ADC4 IO0_3 SPI Bus clock signal ADC port Digital I/O port 0_4 BLE wake up pin, Low/ wake up, High / BLE module automatically sleep ADC port 4 Digital I/O port 0_3 UART TX UART Serial data bus output SPI MOSI SPI Master Out , Slave input ADC3 IO0_2 ADC port 3 Digital I/O port 0_2 UART RX UART Serial data bus input SPI MISO SPI Master input , Slave output ADC2 IO0_1 / ADC1 Digital I/O port 0_1 / ADC PORT 1 ADC port 2 19 20 21 22 23 24 IO0_0 / ADC0 Digital I/O port 0_0 / ADC PORT 0 Reset BLE hardware reset pin (Low: reset) 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.IIC: IIC bus interface, support more than 22K / S, less than 400K / S data transmission rate, a single packet transmission is less than 8 bytes, package transmission intervals greater than 20ms. d.RX: serial bus data input. e.MOSI: Master output, Slave input. f.MISO: Master input, Slave output. g.SCK: SPI bus clock signal. h.SDA: IIC data. i.SCL: IIC clock. j.WAKEUP: BLE wake up pin, Low _wake up, High/ BLE module automatically sleep. k.SEL0 ~ SEL1: MCU and BLE communication mode selection pin. Specific details, see "(7-3) communication protocol mode selection, I/O setting table ". l.REST: BLE hardware reset pin, Low_reset. m.VCC: BLE module power supply pin voltage range DC 2.0~3.6V. n.GND: BLE module ground pin.
(6-4.Communication protocol mode selection, I/O setting Table No. Channel Select PIN status SEL0 SEL1 1 2 3 4 5 0 0 1 1 X 0 1 0 1 X Communication interface state UART OK 0K X X OK SPI X X OK X X IIC X X X OK X Remark 1.Command mode Please contact the Vendor. 2.Description:
0 is Low,1 is high UART modeSEL1=0,SEL0=0 or SEL1=0, SEL0=1 or SEL0,SEL1 floating. SPI mode SEL1=1,SEL0=0 IIC mode SEL1=1,SEL0=1
(7).Antenna size and data : (Frequency Range: 2.4~2.48GHz)
(8). FCC Caution:
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. FCC RF Radiation Exposure Statement:
1. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2. This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. 3. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. Host product manufacturers that they need to provide a physical or e-label stating Contains FCC ID with their finished product. Only those antennas with same type and lesser gain filed under this FCC ID can be used with this device. The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. The final host integrator must ensure there is no instruction provided in the user manual or customer documentation indicating how to install or remove the transmitter module except such device has implemented two-ways authentication between module and the host system. The final host manual shall include the following regulatory statement:This equipment has been tested and found to comply with the limits for a 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.