BLE Module application based on SYD8801 chip

      
1.  General description: SYD8801 BLE module is a Bluetooth low energy single mode module, which is dedicated for low power wireless data transmission (not for traditional BT audio applications). Besides, the module can be customized for any other BLE applications.
 
2.   Applications:  Sports, Fitness, Smart home, Beacon etc.
Such as find me, heart rate monitors, wristband, Blood pressure meter, Weight scales.
      
3.   Key Features:
Ø  Fully compliant with Bluetooth 4.0;
Ø  User friendly environment, very easy to use;
Ø  UART interface, full duplex, baud rate 9600bps;
Ø  Default 20ms connection interval, fast connection;
Ø  Support AT command to adjust connection interval, to control the power consumption adaptively;
 
4.   Key Parameters:
 

Part number	SYD8801 BLE module
BT spec	Bluetooth V4.0
Supply voltage	1.9~3.6V
BLE Stack	ATT,SMP,L2CAP,GAP,GATT
Max. output power	+4dBm
Sensitivity	-94dBm
TX radio current@0dBm *	7.1mA
RX radio current *	8.2mA
Sleep current	<7.5uA
Deep sleep current	<2.5uA
Operating Temperature	-20 ~+85℃
Interface	UART、SPI、I2C、GPIO
Module size	21.59 x 14.48

*Measured @VBAT=3V with DCDC enable;
 
 
5.  Pin definition:
 
                                               
 
Pins Description：

Pin No.	Signal Name	Description
1	GND	GND
2	+3.3	POWER
3	GPIO00	Analog Input 0
4	GPIO01	Analog Input 1
5	SPI_CLK	SPI interface
6	SPI_SDI
7	SPI_CS
8	SPI_SDO
9	GPIO06	I2C_SCL0
10	GPIO07	I2C_SDA0
11	GPIO08
12	GPIO09
13	GPIO14
14	GPIO15
15	GPIO16	I2C_SCL1
16	GPIO17	I2C_SDA1
17	GPIO18
18	GPIO19
19	GPIO22	UART1 RX – not for burning
20	GPIO23	UART1 TX – not for burning
21	RXD0	UART0 RX	Burning interface
22	TXD0	UART0 TX
23	+3.3	POWER
24	GND	GND

 
 
6.  Serial communication protocol:
 
            a.     SYD8801 sends the package with 20Byte length to mobile once UART data received;
            b.     SYD8801 sends out the data from mobile APP to SYD8801 by UART TX;
The following UUIDs are used for BLE communication:
        
Lightbule(IOS) or nRF Master Control Panel（Android）can be used for test;
(For detailed information,please see the "SYD Download" of "Download")