Gravity: I2C to GPIO Shield V2.0
I2C-controlled GPIO expander shield providing 16 additional digital I/O ports with internal pull-ups. Supports up to 8 modules on a single bus via configurable I2C addresses.
Pinout
- P0.0 / GPIO 0 / ED0P0.0
PCA9555 port P0.0; DFRobot reference maps P0.0-P0.7 to GPIO 0-7 / ED0-ED7
Type · digital ioVoltage · +5V module logic per DFRobot specification - P0.1 / GPIO 1 / ED1P0.1
PCA9555 port P0.1; DFRobot reference maps P0.0-P0.7 to GPIO 0-7 / ED0-ED7
Type · digital ioVoltage · +5V module logic per DFRobot specification - P0.2 / GPIO 2 / ED2P0.2
PCA9555 port P0.2; DFRobot reference maps P0.0-P0.7 to GPIO 0-7 / ED0-ED7
Type · digital ioVoltage · +5V module logic per DFRobot specification - P0.3 / GPIO 3 / ED3P0.3
PCA9555 port P0.3; DFRobot reference maps P0.0-P0.7 to GPIO 0-7 / ED0-ED7
Type · digital ioVoltage · +5V module logic per DFRobot specification
Converters
114 other optionsADS1115/MCP3421 ADCs, MCP4725 and GP8413 DACs, CP2102 USB-UART boards, and I2C plumbing like the LTC4316 address shifter — matched to bus, resolution and signal range.
Related groups
4 groups
10W Super Bright LED - Violet visual preview
10W Super Bright LED - Warm White visual preview
3-Pin LED Strip Connector Cable - Single Head (5PCS) visual preview
3-Pin LED Strip Connector Cable (5PCS) visual previewLED pixels
WS2812/SK6812 NeoPixel strips, rings and Jewels, APA102 DotStar pixels, and plain analog RGB strips — each matched to its protocol and host, not just its connector.
Components · Addressable LEDs · 176 parts
18-Channel 8-bit PWM LED Driver w/ I2C Interface visual preview
24LC256 I/P I2C EEPROM PDIP-8 visual preview24LC256 P DIP-8 visual preview
4N25 DIP-6 visual previewBare ICs
74HC logic gates, MCP3008/MCP23017 ADCs and expanders, 24LC256 EEPROM, 4N25-series optocouplers and ULN2803A drivers — bare DIP chips with no breakout-board conveniences like pull-ups or level shifting.
Components · Integrated circuits · 68 parts
256MB Micro SD Memory Card visual preview
25LC256 256 Kbit SPI EEPROM visual preview
64 Mbit Serial Pseudo SRAM - PSRAM - 3.3V 133 MHz visual preview
8GB Class 10 SD/MicroSD Memory Card - SD Adapter Included visual previewMemory
24LC32/25LC256 EEPROM, I2C FRAM, 64Mbit PSRAM, and microSD breakouts up to 64GB — matched to write frequency and data volume, not just interface.
Components · Memory & storage · 39 parts
1/4W Resistor Pack - 400 PCS visual preview
1N4001 Diode - 10 pack visual preview
1N4007 Diode visual preview
1N4148 General Purpose Fast Switching Diode visual previewPassives
E12 resistor kits, ceramic and electrolytic capacitor sets, 1N4148/1N4007 diodes, TIP120 Darlingtons, IRLZ44N MOSFETs and 100F supercapacitors — bench stock in kit quantities.
Components · Passives · 56 parts
