As you remember from our previous article about DS3231 RTC Module, we have identified onboard an EEPROM chip, a 32k AT24C32 one. It is independent from the RTC circuit and conected on the I2C bus, perfect companion for a Data Logger System 🙂 AT24C32 EEPROM The AT24C32 provides 32,768 Read more…
How we will do it: Connect to Google server, fetch the page header that contain the Timestamp and do some string manipulation to obtain the Date & Time information in the format that we need to be able to update our Real Time Clock: getTime = function() conn=net.createConnection(net.TCP, 0) Read more…
What we will need: CBDB Board USB adapter (take a look on Part 1 for details how to connect them together) DS3231 Module – you can buy them at a very good price HERE, 1.62USD/pcs, a very good deal!! For programming and uploading the driver and the software we Read more…
———————————- UPDATE ————————————– For a ADC Input Frontend with Auto-range capabilities in the 0-40V Input range take a look also at the new ADC Input related article ——————————— UPADTE —————————————- After testing the ESP8266 Internal ADC I think it’s time to see also a higher resolution ADC at work. For Read more…
Today subject might look a trivial one but is not. At all. I will try to keep it as easy to understand as possible without too much “behind the scene” theory. Contact bounce is a common problem with mechanical and electromecanical switches, relays, solenoids, etc. Switch contacts are Read more…
New goodies hit my MailBox, this time from Singapore : Let’s see what’s inside. Short but nice documentation including, schematics, pinout, configuration: YES! It’s a new breadboard adapter for ESP-07 or ESP-12 ESP8266 WiFi module, designed by Baoshi a box containing the module nice packed in antistatic bag. Read more…
One of the desired and also needed things in many projects is the availability of a local display to be able to directly see messages, values, results, etc. What we will need to be able to easy interface it with ESP8266 module is a 3V logic level compatible one and Read more…
——————————— NEW UPADTE —————————————- Added also a new example for a 0-5V input range with Voltage divider and LSB calculation, “the easy way”: ESP8266 internal ADC 2 – the easy way example ———————————- UPDATE ————————————– For a ADC Input Frontend with Auto-range capabilities in the 0-40V Input range take a look Read more…
================== W A R N I N G ! ! ==================== Li-Ion batteries are very dangerous if not handled properly. Use them only with proper protection circuits and chargers. DO NOT OVER CHARGE / BURN / OPEN Li-Ion Bats Using any of the informations available on esp8266-projects.com is on your Read more…
It’s time for TIME!I was delaying this article about RTC’s despite de fact that was higly requested with the hope that the ordered DS3231 modules will arrive in time. Didn’t happen, so, until they will hit my MailBox I am presenting you an alternate solution, an RTC chip used before Read more…