Introduction to BLE Module--TYBT1

Introduction to BLE Module–TYBT1

1.Product Overview

TYBT1 is a Bluetooth (BLE) module designed by HangZhou Tuya Technology Corporation, which is designed for outputting LED control signals. The BLE Module consists of a highly integrated wireless Bluetooth chip TLSR8266 and some extra electric circuits that have been programed with Bluetooth network protocol and plenty of software examples. TYBT1 include a 32- bit CPU, BLE/2.4G radio, 512K byte flash, 16k SRAM, 5-channel PWM, one I2C and one UART interface.

Users can customize their LED products by using these PWM signals. Figure 1 shows the block diagram of the TYBT1.

Figure 1. The block diagram of the TYBT1

​ Figure 1. The block diagram of the TYBT1

1.1 Features

  • Integrated low power consumption 32-bit CPU, also known as application processor
  • Basic frequency of the CPU can support 48 MHz
  • Supply voltage range: 1.9V to 3.6V
  • Peripherals: 5PWM,1I2C, 1*UART
  • BLE RF features:

​ Compatible with BLE 4.0

​ Transmitting data rate can go up to 2Mbps

​ TX transmitting power: +7dBm

​ RX receiving sensitivity: -92dBm

​ AES hardware encryption

​ On-board PCB antenna

​ Operating temperature range: -20℃ to 85℃

1.2 Main Application Fields

  • Intelligent LED

  • Intelligent household applications

2. Dimensions and Footprint

2.1 Dimensions

TYBT1 have double sides of pins, totally 16 pins. The distance between each Pin is 2.0mm.

Size of TYBT1: 15mm(W)*17.3mm(L).

Figure 2 shows the dimensions of TYBT1.

​ Figure 2. The dimensions of TYBT1

2.2 Pin Definition

Table 1 shows the general pin attributes of TYBT1

​ Table 1. The typical pin definition of TYBT1

PIN NO. NAME TYPE DESCRIPTION
1 3.3V P Supply voltage
2,14 RX I UART RX
3 GND P Ground
4,13 TX O UART TX
5 CW I/O PWM output pin, default for Cold White LED line
6,15 WW I/O PWM output pin, default for Warm White LED line
7 R I/O PWM output pin, default for Red LED line
8,18 SDA I/O I2C, data interface
9 G I/O PWM output pin, default for Green LED line
10,17 SCL I/O I2C, clock interface
11 B I/O PWM output pin, default for Blue LED line
12 RST I Reset pin for the module
16 SW I/O Bluetooth chipset burning pin

Note: P: Power supply pins; I/O: Digital input or output pins.

If there’s any customization needed for PWM output, please contact our BD manager.

3. Electrical Characteristics

3.1 Absolute Maximum Ratings

​ Table 2. Absolute Maximum Ratings

PARAMETERS DESCRIPTION MIN MAX UNIT
Ts Storage temperature -20 85
VCC Supply voltage -0.3 3.9 V
Electrostatic release quantity (Human body model) TAMB-25℃ - 2 KV
Electrostatic release quantity (Machine model) TAMB-25℃ - 0.5 KV

3.2 Electrical Conditions

​ Table 3. Electrical Conditions

PARAMETERS DESCRIPTION MIN TYPICAL MAX UNIT
Ta Temperature for Commercial grade -20 - 85
VCC Supply voltage 2.5 3.3 3.6 V
VIL IO negative level input -0.3 - VCC*0.25 V
VIH IO positive level input VCC*0.75 - VCC V
VOL IO negative level output - - VCC*0.1 V
VoH IO positive level output VCC*0.8 - VCC V

3.3 Transmitting Current Consumptions

​ Table 4. TX current consumption

PARAMETERS MODE TYPICAL UNIT
Itx Continuously transmitting, 0dBm power output 13 mA
Irx Continuously receiving 13 mA
IDC Normal working mode 80 uA

4. Radio Specification

4.1 Basic Radio Frequency Characteristics

​ Table 5. Basic Radio frequency characteristics

PARAMETERS DESCRIPTION
Working Frequency 2.4GHz ISM band
Radio standard BLE 4.0
Data transmitting rate 1Mbps, 2Mbps
Type of Antenna On-board PCB Antenna

4.2 Transmitting Power

​ Table 6. Transmitting power

PARAMETERS MIN TYPICAL MAX UNIT
RF Average output power consumption 3.8 7 - dBm
20dB bandwidth - 1000 - KHz

4.3 Receiving Sensitivity

​ Table 7. Receiving sensitivity

PARAMETERS MIN TYPICAL MAX UNIT
RX sensitivity 1Mbps -93 -92 -90 dBm
Frequency bias error - -300 - 300 KHz
Co-channel interference Restrain - - -7 - dB

5.Antenna Information

5.1 Antenna Type

Antenna can be connected using On-board PCB antenna only.

5.2 Reduce Antenna Interference

​ IIn order to have the best RF performance, It’s recommended to keep a minimum 15mm distance between the antenna part and the other metal pieces.

6. Packaging Information And Production Guide

6.1 Mechanical Dimensions

​ Figure 3 Dimensions of the module

6.2 Production Guide

The storage for the delivered module should meet the following condition:

  1. The anti-moisture bag should be kept in the environment with temperature < 30℃ and humidity < 85% RH.
  2. The expiration date is 6 months since the dry packaging products was sealed.

Cautions:

  1. All the operators should wear electrostatic ring in the whole process of production.
  2. While operating, water and dirt should not have any contact with the modules.
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