BT2S Reset & Teardown (FCC ID 2ANDL-BT2S)

Before you buy the Tuya Global BT2S, check what's inside.

The BT2S is a compact Bluetooth Low Energy (BLE) module developed by Tuya, featuring the TLSR8250F512ET32 chipset. It is designed for low-power applications such as smart sensors and lighting, operating within a specific voltage range.

⚠️ NOTE: Ensure correct battery polarity when installing.

Quick Specs

Manufacturer: Tuya Global
Model: BT2S
Protocol: Bluetooth
Chipset: Realtek/Beken
Ecosystem: Tuya / Smart Life
App: Smart Life

🔧 Geek Corner (Flashing Info)

Chipset: TLSR8250F512ET32
Flashable: ❌ No
Info: Proprietary Tuya module with integrated BLE, not designed for flashing custom firmware like Tasmota or ESPHome.

User Manual

Scanned pages from the official user manual:

BT2S Manual

External Photos

Photos of the device exterior:

BT2S Exterior

Internal Photos

Teardown photos showing the PCB and components:

BT2S PCB

Verdict

The BT2S is a Bluetooth device from the Tuya / Smart Life ecosystem.

📄 Click to view full text manual (SEO)

BT2S Module Datasheet
Device Development > Module > Bluetooth Module
Version: 20200420
Online Version
BT2S Module Datasheet Contents
Contents
1 Product Overview 1
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Change History 2
3 Module Interfaces 3
3.1 Dimensions and Footprint . . . . . . . . . . . . . . . . . . . . . . . . 3
3.2 Interface Pin Deﬁnition . . . . . . . . . . . . . . . . . . . . . . . . . 4
4 Electrical Parameters 7
4.1 Absolute Electrical Parameters . . . . . . . . . . . . . . . . . . . . . 7
4.2 Electrical Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.3 Working Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 RF Features 10
5.1 Basic RF Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 RF Output Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 RF RX Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6 Antenna Information 12
6.1 Antenna T ype . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 Antenna Interference Reduction . . . . . . . . . . . . . . . . . . . . . 12
7 Packaging Information and Production Instructions 13
7.1 Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.2 Production Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.3 Recommended Oven T emperature Curve . . . . . . . . . . . . . . . . 15
7.4 Storage Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8 MOQ and Packing Information 19
9 Appendix: Statement 20
i
BT2S Module Datasheet 1 PRODUCT OVERVIEW
1 Product Overview
BT2S is an embedded Bluetooth low energy (BLE) module that T uya has developed.
It consists of a highly integrated Bluetooth chip (TLSR8250F512ET32) and several
peripheral components, with an embedded Bluetooth network protocol stack and
robust library functions. BT2S also contains a low-power 32-bit multipoint control
unit (MCU), BLE 5.0 component, 2.4 GHz radio component, 4 Mbits ﬂash memory,
48 KB static random-access memory (SRAM).
1.1 Features
• Embedded low-power 32-bit MCU, which can also function as an application
processor - Dominant frequency: 48 MHz
• Working voltage: 1.8 V to 3.6 V (Under 1.8 V to 2.7 V, the module can start
but the RF performance is not guaranteed. Under 2.8 V to 3.6 V, the module
performance is normal.)
• Peripherals: 5×GPIOs, 1×UART, 1×ADC
• BLE RF features
– Compatible with BLE 5.0
– Up to 2 Mbit/s RF data rate
– TX power: +10 dBm
– RX sensitivity: –94 dBm at BLE 1 Mbit/s
– Embedded advanced encryption standard (AES) hardware encryption
– Working temperature: –20°C to +85°C
1.2 Applications
• Smart LED lights
• Smart households
• Smart low-power sensors
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BT2S Module Datasheet 2 CHANGE HISTORY
2 Change History
Date Change Description Version After Change
2020/04/20This is the ﬁrst release. V1.0.0
2 / 21
BT2S Mo...