Model: BBT-LSP12

BLE Modules

Item specifics

Main parameter	parameter Description	Note
Distance	60m	TClear and open, antenna height 2.5 m, airspeed 1 Mbps.
FIFO	60byte	Single transmission maximum length
Crystal oscillator	24MHz	-
Modulation	GFSK	GFSK Mode
Package	SMD	-
Connector	1.27mm	-
Interface	UART	4800～230400bps
Size	19*13mm	-
Antenna	PCB	50Ω Impedance

Main parameter	Min	Typ	Max	Unit	Note
Voltage supply	1.9	3.3	3.6	V	≥3.3 V ensures output power
Communication level	-	3.3	-	V	For 5V TTL, it may be at risk of burning down
Operating temperature	-40	-	85	℃	-
Frequency	2400	-	2483.5	MHz	ISM band
Transmitting current	-	21	-	mA	Instantaneous power consumption at 10 dBm output
Receiving current	-	6.1	-	mA	-
Turn-off current	-	13.32	-	μA	-
maximum emitting power	-	10	-	dBm	-
Receiving sensitivity	-	-96	-	dBm	Air data rate: 1Mbps
Air data rate(GFSK)	125k	1M	2M	bps	Default 1Mbps

No.	Pin item	Pin direction	Application
1	GND	-	Ground wire, connect to the power reference ground.
2	PWM1	PWM Output	Green light corresponding to SIGMESH HSL
3	PWM2	PWM Output	Red light corresponding to SIGMESH HSL
4	NC	-	-
5	NC	-	-
6	DIO1	Input	Switch input foot, PA0 foot for TLSR8253.
7	DIO2	Input	Switch input foot, PA1 foot for TLSR8253.
8	NC	-	-
9	NC	-	-
10	SWM	-	-
11	SWS	-	-
12	NC	-	-
13	LINK	Output	Network indicator. High level of pilot foot output after network formation.
14	NC	-	-
15	PWM3	PWM Output	Blue light corresponding to SIGMESH HSL model
16	NC	-	-
17	TXD	Output	UART launch boot. Receive user's string of users.
18	RXD	Input	UART receive boot, send to user string
19	VCC	-	Power supply, range 1.9~3.6V (Proposed to increase external ceramic filter capacitance)
20	GND	-	Ground wire, connect to the power reference ground.
21	NC	-	-
22	NC	-	-
23	NC	-	-
24	NC	-	-
25	RST	Input	The chip reset triggers the input foot. It's working at low levels.
26	GND	-	Ground wire, connect to the power reference ground.