| PartNumber | DFR0004 | DFR0015 | DFR0019 |
| Description | Development Boards & Kits - AVR Romeo | RF Development Tools Xbee Shield for Arduino | Prototyping Shield For Arduino |
| Manufacturer | DFRobot | DFRobot | - |
| Product Category | Development Boards & Kits - AVR | RF Development Tools | - |
| RoHS | Y | Y | - |
| Series | Romeo | - | - |
| Product | Evaluation Boards | Wireless Shields | - |
| Core | AVR | - | - |
| Tool Is For Evaluation Of | ATmega168/328 | - | - |
| Packaging | Bulk | Bulk | - |
| Dimensions | 90 mm x 80 mm | - | - |
| Brand | DFRobot | DFRobot | - |
| Interface Type | I2C, USB | SPI | - |
| Data Bus Width | 8 bit | - | - |
| Operating Supply Voltage | 7 V to 12 V | - | - |
| Product Type | Development Boards & Kits - AVR | RF Development Tools | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Development Tools | Development Tools | - |
| Unit Weight | 2.821917 oz | 1.763698 oz | - |
| Type | - | Network Controllers & Processors | - |
| Frequency | - | 2.4 GHz | - |