[Jeu de composants]:PAN3120
[Fréquence]:410–510 MHz
[Puissance d'émission]:20 dBm
[Portée de communication]: 5 km
[Dimensions]:20*14mm
[Poids du produit]:1,5 ± 0,1 g
[Introduction]:La série E291 est un module matériel basé sur la puce PAN3120 de Panqi Microelectronics. Elle supporte une puissance d'émission maximale de 30 dBm, fonctionne dans la bande de fréquences 410-510 MHz et se caractérise par sa petite taille, sa faible consommation d'énergie et sa longue portée. Elle est idéale pour la domotique, le relevé de compteurs sans fil et les applications de communication sans fil à moyenne et longue portée. Ce module étant un émetteur-récepteur RF pur, il nécessite un pilote pour microcontrôleur ou un outil de débogage SPI dédié.
| Pin number | Pin Name | Pin direction | Pin Applications |
| 1 | GND | - | Ground wire, connected to power reference ground |
| 2 | GND | - | Ground wire, connected to power reference ground |
| 3 | GND | - | Ground wire, connected to power reference ground |
| 4 | GND | - | Ground wire, connected to power reference ground |
| 5 | GND | - | Ground wire, connected to power reference ground |
| 6 | RXEN | Output | Used to receive switching control signals, connected to internal GPIO0, and can be left floating. |
| 7 | TXEN | Output | Used for sending switching control, connected to internal GPIO1, and can be left floating. |
| 8 | IO10 | Input/Output | Connected to internal GPIO10 |
| 9 | VCC | power supply | Module power supply, voltage range 1.8V~3.6V |
| 10 | GND | - | Ground wire, connected to power reference ground |
| 11 | GND | - | Ground wire, connected to power reference ground |
| 12 | GND | - | Ground wire, connected to power reference ground |
| 13 | IRQ | Output | The RF interrupt pin is connected to the internal GPIO8. |
| 14 | IO2 | Input/Output | Connected to internal GPIO2 |
| 15 | NRST | input | Reset pin |
| 16 | MISO | Output | SPI data output signal |
| 17 | MONEY | input | SPI data input signal |
| 18 | SCK | input | SPI clock input pin |
| 19 | CSN | input | SPI chip select signal |
| 20 | GND | - | Ground wire, connected to power reference ground |
| 21 | ON | Input/Output | RF antenna, theoretical output impedance 50Ω |
| 22 | GND | - | Ground wire, connected to power reference ground |