• Equipped with ESP32-C3, supporting Wi Fi connection, stable and efficient performance.
• Support integration with mainstream models such as DeepSeek, Doubao, and Qwen.
• Equipped with voice interaction function to achieve emotional intelligent dialogue experience.
• Built in audio chip ES8311+NS4150B, with clear sound quality.
• Support multilingual access and provide voice services in mainstream regions.

Basic Parameters:

• Main controller: ESP32-C3
• Wi-Fi：2.4GHz
• Flash：NOR FLASH 16MB
• Audio+amplifier : ES8311+NS4150B
• Power chip: LGS4056 (single lithium battery)
• Expansion interfaces: U0RXD, U0TXD, VSys+GND (VSys voltage is about 4.5V), 3V3+GND
• Screen: 0.96-inch OLED screen
• Battery interface: Standard 1.25mm interface lithium battery
• Speaker: Default 3514 ultra-thin cavity speaker (8 ohms and 2 watts) [can be replaced with a 3W or so cavity speaker, standard 1.25mm interface]
• Working temperature: -20 ° C to 85 ° C [Pay attention to heat dissipation during long-term use]
• Supported large models: Qwen2.5, DeepSeekV3, Doubao (1.5 Professional Edition)/QwenMax2.5
• AI voice chat only supports the following:
  
  • +86 Chinese Mainland,+852 Hong Kong,+853 Macao,+886 Taiwan, China,+1 US/Canada,+44 UK,+33 France,+39 Italy,+49 Germany,+48 Poland,+41 Switzerland,+34 Spain,+60 Malaysia,+61 Australia,+62 Indonesia,+63 Philippines,+64 New Zealand,+65 Singapore,+66 Thailand,+81 Japan,+82 South Korea,+84 Vietnam,+91 India,+92 Pakistan,+234 Nigeria,+880 Bangladesh,+966 Saudi Arabia,+971 United Arab Emirates,+55 Brazil,+52 Mexico,+56 Chile,+54 Argentina,+20 Egypt,+27 South Africa,+254 Kenya,+255 Tanzania

Product List:

• 1X development board

1. User Manual - BMT ESP32-C3 AI VOICE DEV BOARD