LaskaKit MCP23017 I2C 16 bit I/O Expander
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Product detailed description
If you are low on I/O pins, it's not a problem to add some. All you need is this module. This module expands the number of input/output pins by 16. And because it communicates over the I2C bus, it takes only 2 I/O pins
The device is equipped with a 16-bit quasi bidirectional I/O port (P07-P00, P17-P10), including latch outputs with high current supply for direct LED drive. Each quasi bidirectional I/O can be used as input or output without using a data direction signal.
Thanks to the adjustable three-bit addressing it should not be a problem to connect up to 8 such circuits together
The module contains 3x jumpers and allows to change the address, for more info see datasheet R1, R2 and R3 are pull-up resistors.
Specifications:
- Chip used: MCP23017
- Power: 2.7-5.5V (only 3.3V via μŠup)
- Interface: I 2 C
- Size: 43x20x5mm
Included in delivery:
- 1pc LaskaKit MCP23017 I2C 16 bit I/O Expander
Remark:
- This product is not a standalone functional unit and may require professional installation.
- Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.
Additional parameters
Category: | I/O Expander and multiplexer |
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Warranty: | 2 years |
Weight: | 0.004 kg |
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TK
Tomáš Konečný
Funguje bez problému. Odzkoušeno s ESP32.
BB
μŠup
Bohumil Beran
"Napájení: 2.7-5.5V (přes μŠup pouze 3.3V)"
Pouze 3.3V přes μŠup je omezení samotného konektoru, nebo to má jiný důvod?
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Reply
MF
μŠup
Martin Frajdl
Důvod je ten, že uŠup konektory používáme jen na našich deskách s ESP32 a tudíž je tam jen 3,3V.
F
i2c nebo SPI?
Frantisek
jak tento mobul komunikuje? v Textu je i2c ale ve specifikaci je SPI. Ktere je tedy spravne. Podle PDF ma komunikovat pres i2c ale mozna to uz zmenili. Dekuji za odpoved.
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Reply
KL
i2c nebo SPI?
Konstantin Láska
I2C, opraveno.