Header banner
Revain logoHome Page
๐Ÿ“ฆ noyito pcf8574 io expansion board i2c bus development module (pack of 2) - enhance i/o capability effortlessly logo

๐Ÿ“ฆ NOYITO PCF8574 IO Expansion Board I2C Bus Development Module (Pack of 2) - Enhance I/O Capability Effortlessly Review

3

ยท

Very good

Revainrating 4.5 out of 5ย ย 
Ratingย 
4.5
๐Ÿ–ฅ๏ธ. Single Board Computers, ๐Ÿ’ป Computer Components

View on AmazonView on ะฏM

Media

(4)
img 1 attached to ๐Ÿ“ฆ NOYITO PCF8574 IO Expansion Board I2C Bus Development Module (Pack of 2) - Enhance I/O Capability Effortlessly
img 2 attached to ๐Ÿ“ฆ NOYITO PCF8574 IO Expansion Board I2C Bus Development Module (Pack of 2) - Enhance I/O Capability Effortlessly
img 3 attached to ๐Ÿ“ฆ NOYITO PCF8574 IO Expansion Board I2C Bus Development Module (Pack of 2) - Enhance I/O Capability Effortlessly
img 4 attached to ๐Ÿ“ฆ NOYITO PCF8574 IO Expansion Board I2C Bus Development Module (Pack of 2) - Enhance I/O Capability Effortlessly

Description of ๐Ÿ“ฆ NOYITO PCF8574 IO Expansion Board I2C Bus Development Module (Pack of 2) - Enhance I/O Capability Effortlessly

The PCF8574 IO Expansion Board is used as remote 8-bit I/O expander for I2C-bus. Up to 8 PCF8574 IO Expansion Board can be connected to the I2C-bus, providing up to 64 I/O ports. PCF8574, I2C interface, 8-bit parallel port. For the lack of I / O resources mcu to I / O expansion. Supports two types of access to the target board interface: pin or row. Supports I2C bus cascade (via pencil row docking methods used simultaneously several I2C modules)

Reviews

Global ratings 3
  • 5
    2
  • 4
    0
  • 3
    1
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Great Expansion Board for Single Board Computers

The NOYITO Expansion Expander is a great edition for single board computers. Based on our own experience, we can say that this board is easy to set up and provides multiple options for expansion, including GPIO headers and I2C interfaces. The build quality is also excellent, with a sturdy aluminum casing. The only downside we found is that the board may get a bit warm, but it's not a big issue. Overall, we highly recommend this expansion board for anyone looking to expand their single boardโ€ฆ

Pros
  • Easy to set up, Multiple expansion options, Excellent build quality.
Cons
  • May get a bit warm.

Revainrating 5 out of 5

Works great out of the "bag "!

I use it to connect some old ICs to my microcontroller via an 8-bit parallel bus. No questions. Outstanding quality for the money.

Pros
  • glitters
Cons
  • worries me

Revainrating 3 out of 5

Read the definition carefully

The definition says it's quasi-bidirectional - a strange term - but if you look at the PIN diagram it all becomes clear. While they're great for OUTPUT (assuming a 1mA source or 25mA sink is sufficient), as an INPUT they fall badly in my opinion. The input must be able to overcome the 1mA OUTPUT enough to reduce the signal level. And your code MUST write HIGH to the INPUT pin before attempting to read. In short, I consider them for OUTPUT use ONLY. They work as an input, but IMO puts a load onโ€ฆ

Pros
  • New
Cons
  • Repair