| Main Parameters | Min. | Typ. | Max. | Remarks |
| Working voltage (V) | 1.8 | 3.3 | 4.3 | >=3.3V can guarantee output power |
| Communication level (V) | 3.3 | |||
| Operating temperature (°C) | -40 | 85 | ||
| Working frequency band (MHz) | 2400 | 2483.5 | ||
| Transmit power (dBm) | 0 | 6 | ||
| Receive sensitivity | ||||
| Emission current (mA) | 7.5 | |||
| Receive current (mA) | 8.5 | |||
| Sleep current (uA) | <5 | When not connected | ||
| Idle state current (mA) | 6.58 | Idle state, means no connection, the module does not broadcast/scan |
| Pin No. | Pin Definition | Pin Orientation | Pin Function | Instruction |
| 1 | GND | Input | Power ground | |
| 2 | PA00 | Input | Disconnect pin | Pull up by default. Low level: disconnect all Bluetooth connections and stop broadcasting/scanning; high level: resume broadcasting/scanning |
| 3 | PA01 | SWCLK | ||
| 4 | PA02 | SWDIO | ||
| 5 | PA03 | Input | wake-up pin CS | Default pull-up: low-level work, high-level sleep |
| 6 | PA04 | Input | Module selection SET | Pull up by default. High level: transparent transmission mode; low level: configuration mode |
| 7 | PA05 | TXD | Module serial port data sending pin | |
| 8 | PA06 | RXD | Module serial port data receiving pin | |
| 9 | GND | Power ground | ||
| 10 | VCC | Positive power supply | ||
| 11 | PC00 | GPIO | ||
| 12 | PC01 | GPIO | ||
| 13 | PC02 | GPIO | ||
| 14 | PC03 | GPIO | ||
| 15 | PC04 | GPIO | ||
| 16 | PC05 | GPIO | ||
| 17 | PB02 | output | Sleep state | Wake-up mode: high level; low power mode: low level |
| 18 | PB01 | output | Mode status | Transparent transmission mode: low level; configuration mode: high level |
| 19 | RESET | output | Reset | Built-in pull-up resistor, active low |
| 20 | PB00 | output | Connection Status | With connection: high level; no connection: low level |
Fast Shipping and Professional Packing
We offer a wide range of shipping options owing to our long-standing relationships with UPS, FedEx and DHL. Our warehouse personnel will pack all goods to our exacting specifications. Your goods will go through a thorough inspection and be securely secured prior to being shipped. Every day, we deliver to thousands of customers across many countries. This shows our commitment to become the biggest online retailer on earth. Warehouses and distribution centers can be found in Europe and the USA.
Orders that contain more than one item are assigned processing times in accordance with the item.
Prior to shipping, we check the item thoroughly before sending the items. The majority of orders will be delivered within 48 hours. Delivery time ranges between 3-7 days.
Returns
The inventory is always changing and we do not completely manage it because several parties are involved, including our warehouse and factory. The actual stock levels can fluctuate at any point. Please understand it may happen that your order is out of stock after the order has been placed.
Our policy is valid for 30 days. However, if the 30 days have elapsed after you bought your product, we are unable to provide a refund or exchange.
You can only return an item if it is unused and is in the same condition the day you received it. It must also be in its original packaging.
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