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ptjaPL's Product Reviews
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JY-MCU mini_RTCpro DS3231 Arduino Compatible Precision Clock Module w/ Temperature
JY-MCU mini_RTCpro DS3231 Arduino Compatible Precision Clock Module w/ Temperature

ptjaPL
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VERIFIED OWNER
  • JoinedFeb 2013
  • Posts 13
  • Reviews 3
  • Kudos0
Overall   (4.7)
› Quality
› Value
1 of 1 people found the following review helpful
PROS
Works as expected. It also can measure temperature.
CONS
None so far.
I bought https://www.fasttech.com/p/1012004 first, but it was wasting the money. This one is much better. Library is easy to find (I used GPL DS3231RTC library by Michael Margolis and Wagner Sartori Junior).
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Arduino Compatible Tiny I2C RTC DS1307 AT24C32 Real Time Clock RTC Module
Arduino Compatible Tiny I2C RTC DS1307 AT24C32 Real Time Clock RTC Module

ptjaPL
Member

VERIFIED OWNER
  • JoinedFeb 2013
  • Posts 13
  • Reviews 3
  • Kudos0
Overall   (2.5)
› Quality
› Value
PROS
EEPROM
CONS
Completely unreliable.
I suspect that it is vulnerable to power or signal line random signal changes. Even in the case of cut off the power of arduino board for a moment - the time completely changes to some random value. Buy SKU 1174102 https://www.fasttech.com/p/1174102 instead.
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JY-MCU ENC28J60 Ethernet LAN Network Module
JY-MCU ENC28J60 Ethernet LAN Network Module

ptjaPL
Member

VERIFIED OWNER
  • JoinedFeb 2013
  • Posts 13
  • Reviews 3
  • Kudos0
Overall   (4.5)
› Quality
› Value
PROS
Cheaper than 5100 module.
CONS
I didn't find any yet.
I added UIPEthernet library by Norbert Truchsess (https://github.com/ntruchsess/arduino_uip) to my sketch, opened one of the examples and it just worked :) I use Arduino Mega (SKU 1101400) and my connection was: CS - 53, SCK - 52, MOSI - 51, MISO - 50.
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