PINGEQUA
RF PACK S3 for M5Stack StickS3
RF PACK S3 for M5Stack StickS3
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RF Pack S3 · Black
Dual-band RF that plugs into StickS3.
Sub-GHz CC1101 and 2.4 GHz NRF24L01+ with PA/LNA on a four-layer board, screwed onto your M5Stack StickS3 with a native Bruce-firmware pin map.
- Dual-band front end — NRF24L01+ 2.4 GHz + CC1101 433 MHz, both PA/LNA
- SN74 logic buffer for clean SPI isolation between chips
- Custom LC filtering — holds 3.3 V rail under PA load
- Top-mounted SMA — bottom grip stays clear
- Native pin map for the Bruce m5stack-sticks3 build
- M2 screw mount, four-layer PCB, Grove cutout preserved
// 01 · Architecture
SPI bus, isolated. PA rails, decoupled.
One ESP32-S3 host drives both transceivers over a shared SPI bus. The SN74 logic buffer sits between the host and the radios, so transients on either chip don't disturb the line back to the MCU.
Signal Path
LC filter network on the 3.3 V rail keeps PA current spikes off the host supply.
// 02 · Why not a generic breakout
Built for the StickS3
Generic NRF24/CC1101 board
Bare SPI, jumper wires, PCB antennas.
Shared SPI lines without buffering, unfiltered 3.3 V rail, generic pin order, mechanical fit handled with tape and prayer. Crashes show up the moment a PA stage keys up.
PINGEQUA RF Pack S3
Buffered SPI, filtered rails, dedicated form factor.
SN74 isolation between host and radios, LC-filtered supply, two top-mounted SMA pigtails, M2 mounting holes that line up with the StickS3 shell, pin map matched to Bruce's m5stack-sticks3 build.
// 03 · Quick Start
Three steps from box to spectrum view.
m5stack-sticks3 build via the official web flasher, then pick your radio in RF → Config → Module. Use the (Legacy) driver entries — see FAQ.// 04 · Compatibility
Designed for one host, one firmware.
Not a fit for: M5StickC Plus 1.1 / Plus 2 (use Stick-RF 424), Cardputer / Cardputer ADV (use Hydra RF Cap series), or any non-M5Stack ESP32 board.
// 05 · In the box
QTY 1
RF Pack S3 board
Four-layer PCB, dual-radio, SN74-buffered.
QTY 1
2.4 GHz antenna
SMA, for the NRF24L01+ jack.
QTY 1
433 MHz antenna
SMA, for the CC1101 jack.
QTY 2
M2 screws
For the StickS3 backplate mount.
QTY 1
Quick start card
Bruce menu paths, pin reference.
StickS3 host device is not included.
// 06 · Specifications
The numbers that matter.
RF Front-End
Hardware
m5stack-sticks3 buildMechanical
Compatibility
// 07 · FAQ
Real questions from real buyers.
Q.01 I'm getting "CC1101 not found" or "NRF24 not detected" — is the board dead? +
Almost always a firmware issue, not a hardware one. Bruce v1.12 and v1.13 shipped a SPI-timing and AXP power-management bug that prevents StickC-class hosts from detecting the radios. Flash the latest Bruce release via the official web flasher and the chips come up reliably.
If it still fails after a clean flash, re-seat the M2 screws and confirm both SMA jacks are on the correct radio. The 2.4 GHz antenna goes on NRF24, the 433 MHz antenna on CC1101.
Q.02 Which menu entry do I pick in Bruce — "CC1101" or "CC1101 (Legacy)"? +
Use the (Legacy) driver entries for both chips. The non-legacy modes target a different driver path used by other M5Stack builds and won't recognize this board.
Q.03 Does Bruce officially support the M5Stack StickS3? +
Yes — m5stack-sticks3 is an upstream board target in the BruceDevices/firmware repo. Several StickS3-specific fixes (PSRAM detection, audio init, boot backlight) landed in late 2025 and early 2026 — issues #2371 and #2148. Use the latest stable build, not an older cached binary, to pick those fixes up.
Q.04 I have a StickC Plus or a Cardputer — will this fit? +
No. RF Pack S3 is dedicated to the StickS3 footprint and pin order. For other M5Stack hosts, use the matching SKU:
StickC Plus 1.1 / Plus 2 → Stick-RF 424. Cardputer ADV → Hydra RF Cap series. Buying the wrong host pairing is the most common return reason on this category — verify the model on the back of your device before ordering.
For protocol research, signal analysis, and electronics education only. End users are responsible for compliance with local radio regulations — FCC Part 15 (US), ISED RSS-Gen / RSS-247 (Canada), RED 2014/53/EU (EU/UK), MIC Radio Law (Japan), and equivalent. Operating PA-amplified transmitters in regulated spectrum without proper authorization may be unlawful in your jurisdiction. PINGEQUA does not authorize use of this product for jamming, unauthorized interception, or any unlicensed transmission.
Shipping & Delivery
Shipping & Delivery
We ship globally. Orders are typically processed within 48 hours. Estimated delivery: 7-15 business days depending on your region.
Warranty & Returns
Warranty & Returns
14-day return policy for unused items. Our hardware is backed by a limited warranty against manufacturing defects. (Note: Damage from improper flashing or overvoltage is not covered).
