I was asked if MCP9008 Temperature sensor can be replaced with the less precise but widely available LM75 one. The answer is YES, it can be done without any problems, actually they can share same slot on CBDB Dev Board 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 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 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 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 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 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 Read more…
Just a quick one about new goodies found in the MailBox : External protective envelope Envelope in Bulgarian language:) Have you ever heard about Bulgaria? Is a country in southeastern Europe, member of the European Union, NATO, and the Council Read more…
New version here: http://esp8266-projects.org/2015/03/internal-adc-esp8266/
Now, with a nice and powerful 12 bit DAC working on our ESP8266 CBDB Board ( see Part 1 ) let’s test it to the limit a little bit. As you will see from the Oscilloscope and DMM images below, Read more…