Tuesday, December 26, 2017, 10:00:35 AM, you wrote: > listing usually mention the chipset used. > Salvador Can you tell what chip this one uses? https://www.ebay.com/itm/ULTIMATE-UNO-R3-Starter-Kit-for-Arduino-Keypad-RTC-1602LCD-Servo-Motor-Gas-Relay/132444179806?hash=item1ed649cd5e:g:1WoAAOSw-jFaPN0w Kandur