As you already may suspect, it is a version intended for development, as the module doesn´t have to be soldered to a baseboard (by means of hot-air reflow). WizFi250-H can be beneficial not only for development, but also for usage in a target device, where it isn´t necessary to maintain the lowest possible construction height (baseboard + WiFi module). At the same time, this combination enables to assemble another components on a baseboard - below the WiFi module.
From the construction point of view, the WizFi250-H module is solved as a combination of the WizFi250 module with a small PCB with 2x double pin header (1.25mm). As for other features, the module is identical to the original module, that´s why they have the same datasheet WizFi250. WizFi250H can be used with the WizFi250-EVB development board. We bring you a comparison of both versions - with and without a pin header on attached pictures.
easily applicable Wi-Fi module - without soldering
serial UART and SPI interface
simple AT commands
IEEE 802.11 b/g/n
easy configuration through a built-in web server
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Date of publishing 08/26/2014. When you issue article on your website, please give its source: https://www.soselectronic.com/en/articles/wiznet/wiznet-wizfi250h-when-a-small-difference-can-help-significantly-1578
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