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Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on RedBear Duo is a Breadboard-friendly Wi-Fi + BLE IoT Board Based on Ampak AP6212 Module (Crowdfunding)

RedBear Duo is a Breadboard-friendly Wi-Fi + BLE IoT Board Based on Ampak AP6212 Module (Crowdfunding)

I’ve taken apart lots of TV boxes and together with Realtek, Ampak are by far the most popular wireless modules to provide WiFi and Bluetooth connectivity in those devices. One startup decided to use Ampak AP6212 module, also found in NanoPi 2 board, to create a breadboard-friendly IoT board with Bluetooth 4.0 and 802.11b/g/n connectivity. Redboard Duo has been designed with the same form factor as many other IoT boards such as NodeMCU or Spark Photon, and features the following: Ampak AP6212 module: STMicroelectronics STM32F205 ARM Cortex-M3 @120MHz, 128 KB SRAM and 1MB Flash Broadcom BCM43438 Wi-Fi 802.11n (2.4GHz only) + Bluetooth 4.1 (Dual Mode) combo chip Storage – On-board 16 Mbit (2 MB) SPI Flash Integrated chip antenna with the option to connect external antenna Expansion – Headers with 18 I/O pins Misc – RGB status LED Dimensions – 20.5mm x 39mm The company also made a small baseboard called RBLink with […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 16 Comments on MXCHIP EMW3165 is an $8 CE/FCC Certified WiFi Module with an STM32F4 Cortex M4 MCU

MXCHIP EMW3165 is an $8 CE/FCC Certified WiFi Module with an STM32F4 Cortex M4 MCU

A few months ago, Seeed Studio started selling MXCHIP EMW3162 Wi-Fi module with a STM32F2 Cortex M3 MCU clocked at 120Mhz for $9.95. It’s more capable than ESP8266 modules but also around 3 times more expensive. The company has now launched another WiFi module called MXCHIP EMW3165 with an STM32F4 Cortex M4 MCU @ 100 MHz, FCC certification, and listed for $7.95. EMW3165 module specifications: MCU – STMicro STM32F411CE ARM Cortex M4 micro-controller @ 100 MHz with 512KB flash, 128KB RAM, DSP, and FPU Storage – 2MB SPI flash Wi-Fi connectivity 802.11b, 802.11g, 802.11n (single stream) WEP, WPA/WPA2 PSK/Enterprise 16.5dBm@11b; 14.5dBm@11g; 13.5dBm@11n Receiver Sensitivity – 87 dBm Station, Soft AP and Wi-Fi direct Support EasyLink On-board PCB antenna (EMW3165-P model) or IPEX connector for external antenna (EMW3165-E model) CE & FCC compliant Peripherals: 22 GPIOs USART, I2C ADC, DAC Timer/PWM JTAG/SWD debug interface Connectors – 1×20 + 1x 21 half-through […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on MXCHIP EMW3162 is a $10 Low Power Wi-Fi Module for IoT Applications

MXCHIP EMW3162 is a $10 Low Power Wi-Fi Module for IoT Applications

You can’t beat ESP8266 Wi-Fi modules on price to add Wi-Fi to your IoT projects, but Hackaday found a new Wi-Fi module by Shanghai MXCHIP Information Technology that sells for $10 on Seeed Studio or Amazon US, that should be better suited to battery operated project thanks to a lower power consumption. EMW3162 also features a more powerful STM32F205 cortex M3 micro-controller, as well as more I/Os than ESP8266. Specifications for EMW3162 Wi-Fi module: MCU – STM32F2 Cortex M3 MCU @ 120 MHz with 128KB RAM, 1MB flashOn Wi-Fi connectivity 802.11b, 802.11g, 802.11n (single stream) on channel 1-14 @ 2.4GHz WEP, WPA/WPA2 PSK/Enterprise (hardware encryption) Transmit power: 18.5dBm@11b; 15.5dBm@11g; 14.5dBm@11n MIN Receiver Sensitivity: -96 dBm Max Data rate: 11Mbps@11b; 54Mbps@11g; 72Mbps@11n HT20 Wi-Fi modes: Station, Soft AP and Wi-Fi direct Advanced 1×1 802.11n features: Full/Half Guard Interval, Frame Aggregation, Space Time Block Coding (STBC), Low Density Parity Check (LDPC) Encoding […]

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