Comparison of Popular IOT Modules Elecrom August 20, 2015; Updated On: October 23rd, 2015 0 This blog post provides the comparison of various IOT modules. Additionally, links to their various online resources are provided below: VoCore Carambola 2 ESP8266 module Company Vonger 8 devices Esspressif WiFi SOC RT5350 AR9331 ESP8266 WiFi Standard 802.11 n 802.11 b/g/n 802.11 b/g/n WiFi Frequency (GHz) 2.4 2.4 2.4/ 5 SOC Clock Frequency (MHz) 360 400 ? Antenna Chip antenna uFL connector Microstrip Max Output Power (dBm) 15 (?) 21 19.5 SRAM Memory NA NA 80KB DRAM Memory 32 MB (133 MHz) 64 MB NA Flash Memory 8 MB / 16 MB (Serial – 104 MHz) 16 MB (Serial) 512KB / 1MB (onchip) Dimensions (mm) 25.4 x 25.4 28 x 38 Depends on module, but similar Encryption WEP 64/128, WPA, WPA2, WAPI WEP, TKIP, AES, WAPI WPA, WPA2, WPS Access point mode Yes Yes Yes USB interface USB 2.0 USB 2.0 (Host/Slave) NA Ethernet interface Two ports 10/100M Two ports 10/100M NA Other interfaces Serial Port, SPI, I2C, I2S, PCM, JTAG Serial Port, I2S, SLIC, SPDIF SDIO 1.1/ 2, UART, SPI, Operating System openWRT openWRT None Preloaded Software openWRT openWRT AT command firmware Integrated Protocol Stack – – TCP/IP Mother board available Yes Yes Yes Digital IOs 28 (Multiplexed) 23 (Multiplexed) Min 2 Cost of Module $20 (Free shiping through China Post)$10 (Approx, Bulk, 2K Units) $25$15 (Approx, Bulk, 2K Units) $5-$8 Cost of Module with Base board $45 $43 / $69 $5-$8 Order Page Order Page Order Page Module Datasheet Vocore DS Carambola 2 DS ESP8266 DS SOC Datasheet RT5350 AR9331 ESP8266 DS Resources More Info More Info More Info VoCore Resources: Home Page : http://www.vocore.io/wiki/index VoCore How To : https://www.elecrom.com/2015/04/22/vocore-how-to/ WikiDevi : https://wikidevi.com/wiki/VoCore Carambola 2 Resources: Home Page : http://www.8devices.com/carambola-2 Using OpenWrt with Carambola 2 : http://wiki.openwrt.org/toh/8devices/carambola2 OpenWrt build system for Carambola 2 : https://github.com/8devices/carambola2 ESP8266 Resources: Wiki : http://www.esp8266.com/wiki/doku.php List of modules from various manufacturers : https://en.wikipedia.org/wiki/ESP8266 Githun Wiki : https://github.com/esp8266/esp8266-wiki/wiki Do you want comparison for any other IOT modules? Let us know.