Introduction to BLE Module--TYBLC3

Introduction to BLE Module–TYLC3

1.Product Overview

TYLC3 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. TYLC3 include a 32- bit CPU, BLE/2.4G radio, 512K byte flash, 16k SRAM and 4-channel PWM.

Users can customize their LED products by using these PWM signals. Figure 1 shows the block diagram of the TYLC3.

Figure 1. The block diagram of the TYLC3

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: 2.7V to 3.6V

  • Peripherals: 4*PWM

  • 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

TYLC3 has 2 columns of Pins. The distance between each Pin is 2.0mm. Size of TYLC3: 15mm(W)*17.3mm(L).

Figure 2 shows the dimensions of TYLC3.

​ Figure 2. The dimensions of TYLC3

2.2 Pin Definition

Table 1 shows the general pin attributes of TYBT4

​ Table 1. The typical pin definition of TYBT4

1 NC / Non-connected
2 NC / Non-connected
3 3.3V P Supply voltage
4 GND P Ground
5 W I/O PWM output pin, default for White LED line
6 B I/O PWM output pin, default for Blue LED line
7 G I/O PWM output pin, default for Green LED line
8 R I/O PWM output pin, default for Red LED line
9 SW I/O Bluetooth chipset burning pin
10 GND P Ground for Bluetooth chipset burning
11 3.3V P Supply voltage for Bluetooth chipset burning

Note: S: 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

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

Ta Temperature for Commercial grade -20 - 85
VCC Supply voltage 2.7 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

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

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

4.2 Transmitting Power

​ Table 6. Transmitting power

RF Average output power consumption 3.8 7 - dBm
20dB bandwidth - 1000 - KHz

4.3 Receiving Sensitivity

​ Table 7. Receiving sensitivity

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

In 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.


  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.