Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

Building simple web server with ESP8266 module

ESP8266 is really cheap (~$4) WiFi transceiver module that comes in many PCB configurations. WiFi module can be connected to other devices that can access and control it with AT commands, but fun part is that WiFi module can be used as stand alone device which can be programmed with LUA script which could perform simple tasks like connect to WiFi, control GPIOs and toggle LEDs or drive other devices. Rui Santos have written a nice tutorial where he teaches how to set up a schematic of two LEDs connected to ESP8266 module. Then he demonstrates how to write a simple LUA script using ESPlorer Java based GUI and how to flash device with NodeMCU flasher. His example script enables WiFI module to work as web server where you can access it through web page and turn ON/OFF two LEDs by simply pressing buttons. Continue reading

LPC2294 based webbox project

ARM microcontrollers are great for running embedded linux. This project got some power as it uses 2MB SRAM, Philips LPC22xx processor that runs at 60MHz, SD/MMC card slot, NIC 10Mbit RTL8019 Ethernet chip. If you dare to recreate this project – here are Eagle files needed. Also you need to load uClinux in to RAM memory with bootloader and uClinux source code with proper MMC/SD and network card drivers. Once everything is set – you can run various linux based servers like http, smtp etc. and access them via your computer client programs like browsers, pop clients – you name it. Continue reading