CC1101 Sub-GHz module for Flipper Zero

CC1101 vs nRF24L01+ for Flipper Zero & M5Stack: Which One Do You Actually Need?

PINGEQUA Lab · CC1101 vs nRF24L01+ comparison · 4 min read · Updated 2026-06-29

CC1101 and nRF24L01+ show up in the same Flipper Zero and M5Stack RF conversations, but they don't actually compete for the same job.

Quick answerThe CC1101 is a Sub-GHz transceiver (300–928 MHz: 315/433/868/915 MHz); the nRF24L01+ is a 2.4 GHz transceiver — they cover completely different bands and don't overlap. Most serious setups need both, which is why the nRF24 + CC1101 2-in-1 RF Module exists as a single dual-radio board.
CC1101 nRF24L01+
Band Sub-GHz 300–928 MHz 2.4 GHz ISM
Typical targets Garage/car remotes, IoT sensors, 433 MHz devices 2.4 GHz wireless mice/keyboards, drones, proprietary 2.4 GHz links
Range Longer — low frequency penetrates walls Shorter — 2.4 GHz blocks more easily
On Flipper Zero Extends/replaces the stock Sub-GHz radio Adds a band the Flipper has no native radio for
Common research Sub-GHz capture/replay 2.4 GHz HID ("MouseJack"-style)

What the CC1101 does

The CC1101 is a Sub-GHz radio — frequencies below 1 GHz, where a huge amount of everyday wireless lives: garage doors, car key fobs, weather stations, TPMS, smart-home switches, industrial telemetry. A high-gain CC1101 module (with a PA/LNA stage) improves receive sensitivity and transmit reach over the stock internal radio, useful for capturing weak or distant Sub-GHz signals during authorized testing.

Get a CC1101 if you work with 433 / 868 / 915 MHz devices — the vast majority of Sub-GHz remotes and sensors.

What the nRF24L01+ does

The nRF24L01+ works in 2.4 GHz — a band the Flipper Zero has no built-in radio for. It's used by many wireless keyboards/mice and various proprietary 2.4 GHz links. Adding an nRF24L01+ opens research that's simply impossible on stock hardware.

Get an nRF24L01+ if your target is in 2.4 GHz (HID research, proprietary 2.4 GHz protocols).

So which one? (the decision a spec sheet doesn't finish)

A pure spec comparison leaves you stuck choosing. Here's the actual decision:

  • Only ever touching Sub-GHz remotes/sensors? CC1101 alone is enough.
  • Want 2.4 GHz too, or not sure yet? Get both. Because the bands don't overlap, owning one chip leaves a permanent blind spot, and a second board later costs more than a dual board now.

That's why our boards put both chips on one PCB with isolated power and proper chip-select, so transmitting on one radio never browns out or freezes the other:

New to the snap-on module format? See What Is a CC1101 Cap?

Antennas matter

The two chips need band-matched antennas — a 433 MHz Sub-GHz antenna is not a 2.4 GHz antenna, and the wrong one kills range. Quality dual boards ship the correct antenna for each radio.

Cover both bands on one board

Dual-radio modules avoid the permanent blind spot of picking just one chip.

Flipper Zero 2-in-1 RF Module Hydra RF 424 (433 MHz) Hydra RF 924 (915 MHz) RF Pack S3

Frequently asked questions

Is the CC1101 better than the nRF24L01+?
No — not comparable. CC1101 = Sub-GHz (300–928 MHz), nRF24 = 2.4 GHz. "Better" depends entirely on the band you need.
Can one chip cover both bands?
No. CC1101 can't reach 2.4 GHz; nRF24 can't reach Sub-GHz. To cover both, you need both chips — hence dual-radio modules.
Does the Flipper Zero already have these?
It has a built-in (limited) Sub-GHz radio, but no 2.4 GHz radio. A CC1101 module extends Sub-GHz; an nRF24 adds the missing 2.4 GHz band.
Which CC1101 frequency — 433, 868, or 915 MHz?
433 MHz is most common worldwide; 868 MHz common in the EU; 915 MHz in North America. Match your region and target devices.
Is using these modules legal?
Using them to test equipment you own or are authorized to assess is legal in most regions; transmitting on licensed bands or against others' devices may not be. Operate within local RF rules (e.g. FCC Part 15 in the US).

Sources & further reading: What Is a CC1101 Cap? (PINGEQUA Lab)

Educational content for authorized security research and RF experimentation only — only test devices you own or have permission to assess, comply with local radio regulations including FCC Part 15 (US) / CE-RED (EU), and note PINGEQUA is an independent hardware maker not affiliated with Texas Instruments, Nordic Semiconductor, Flipper Devices, or M5Stack.

Back to blog