RadioMaster Boxer (CC2500): specs
Hand-held 2.4 GHz radio transmitter running EdgeTX, with an internal CC2500 multi-protocol RF module.
Specs
| Spec | Value | Source |
|---|---|---|
| Frequency | 2.400 GHz to 2.480 GHz | source Specifications (p.4) |
| Internal RF options | CC2500 multi-protocol / 4-in-1 multi-protocol / ELRS 2.4GHz (this page: CC2500 version) | source Specifications (p.4) |
| Voltage range | 6.6-8.4V DC | source Specifications (p.4) |
| Battery | 7.4V 2-cell Lithium-Polymer, or two 3.7V 18650 Lithium-Ion cells; batteries not included | source Specifications (p.4) |
| Built-in charging | USB-C, for 2x 3.7V Li-ion 18650 or 2x 3.7V Li-Poly only; 4.2 V per cell when charged | source Batteries and charging (p.2) |
| Channels | Maximum 16, receiver dependent | source Specifications (p.4) |
| Radio firmware | EdgeTX (transmitter) / Multi-Module (RF module) | source Specifications (p.4) |
| Display | 128 x 64 monochrome LCD | source Specifications (p.4) |
| External module bay | JR / FrSKY / Crossfire compatible | source Specifications (p.4) |
| Size and weight | 235 x 178 x 77 mm; 532.5 g | source Specifications (p.4) |
Power
| Value | Source | |
|---|---|---|
| Supply | 6.6-8.4V DC from a 7.4 V 2-cell Lithium-Polymer pack or two 3.7 V 18650 cells | source Specifications (p.4) |
Pinout
We don't publish a pin table for this part: no official source we could verify gives one. Check the labels printed on your module, and see the notes below.
Build with it
Project ideas for the RadioMaster Boxer (CC2500). Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.
- Radio pack voltage monitor: A two-cell pack reaches 8.4 V, inside the INA219's 0 V to 26 V bus range, and the INA219 runs from 3.3 V I2C. This is a bench monitor for a spare pack, not a charger; charge in the radio only with the cell types the maker names. Learning project.
- Pack check on a Pi: The Pi talks to the INA219 over I2C at 3.3 V; the module's bus input accepts the pack's 8.4 V maximum. Learning project; the radio itself is not modified.
- Pack readout page: The SuperMini runs the INA219 over 3.3 V I2C and the pack's 8.4 V maximum is inside the module's 0 V to 26 V bus range. Bench monitor for a spare pack. Learning project.
Common mistakes
- Switching on without the antenna. The maker says to fit the antenna in the top of the radio before installing batteries and turning on, and that running without it and with the RF module powered damages the module (source: link, Important p.1).
- Charging the wrong cells in the built-in charger. It is made for 2x 3.7 V Li-ion 18650 or 2-cell Li-Poly (4.2 V per cell full); do not use LiFe packs or 3.6 V 18650 cells (4.10 V full). With Li-ion, the cells must be unprotected button-top cells (source: link, Batteries and charging p.2).
- Assuming any receiver will bind. The module is multi-protocol and the supported protocols depend on the module and firmware; the maker points to the Multi-Module protocol list (source: link, Model and protocol selection p.3).
Not covered by the official source
- The quick start guide gives no current draw or transmit power for the CC2500 module, and does not list protocols; it points to the Multi-Module protocol list, which was not read. No receiver pairing idea is given for that reason.
- A third idea uses no receiver pairing for the same reason.
Sources
- link (Boxer Quick start guide, maker's own file)