MAX232

The MAX220–MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.28/V.24 communications interfaces, particularly applications where ±12V is not available.. The MAX225, MAX233, MAX235, and MAX245/MAX246/MAX247 use no external components and are recommended for applications where printed circuit board space is critical.

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ASCII Video Terminal

“Geoff Graham released an inexpensive video terminal design in 2014. Several others have updated the firmware. Here is an updated PC board. Geoff Graham released an inexpensive video terminal design in 2014. Unfortunately the original design only had TTL serial …

Particle Weather VFD

“A retro VFD weather display project powered by Weather Underground and Particle. This project displays weather from Weather Underground on a serial vacuum fluorescent display (VFD).”

Gateway: Node-RED + ESP8266 Modbus RTU MQTT + HMI Industrial Panasonic

“Given the growth of IoT applications using the MQTT protocol as a base and the Node-RED platform, we have created a possibility for industrial devices or devices using Modbus RTU protocol (RS232 or RS485) to interact with applications or …

Arduino Writing Mewtocol Protocol From PLC’S Panasonic

“Thanks to the request of one of my subscribers I have created this tutorial, which will be written in a Panasonic PLC (Nais) of the FPX Series Family. These PLCs are very practical and a high percentage of machines have …

AT89SXX Development Board

“Our AT89Sxx Development Board provides a very simple and cost effective platform for prototyping solution. The compact design provides connection to all the pins of the microcontroller for the user.”

Texas Instruments

Texas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors, which it sells to electronics designers and manufacturers globally. Headquartered in Dallas, Texas, United States, TI is one of the top ten semiconductor companies worldwide, based …

Wifi for Weather station WS2357 Lacrosse

“Use of the module ESP8266 with a meteo station LACROSSE WS2357. Here is a realization a meteo station ws2357 in WiFi with the module ESP8266 “

Atmega8 Development Board

“Atmega8 Development Board provides a very simple and cost effective platform for prototyping solution. The compact design provides connection to all the pins of the microcontroller for the user.”

RS232 - RS485 Converter with Automatic RX - TX Control

“RS232 is one of the most used, easy to develop and easy to apply communication protocol. We generally encounter to this standard at the MCU applications. But it has some restrictions. It allows us to use maximum 15 meters cable …

Hardware Random Bit Generator

“The article appearing below was one of my recent posts to the sci.crypt newsgroup. These are some notes about building a hardware random bit generator. Johnny von Neumann once said that anybody who contemplates arithmetic methods for the generation …