Expansion
Expansion is an open source PCB design by anton-vinogradov: a 2-layer, 80 × 60 mm board with 13 components (8 distinct parts). Filed under rf & radio.
Open multiband RF handheld on ESP32-S3 + ESP32-C5 — successor to esp32-leshy / ESP32-DIV
2.4/5-GHz Wi‑Fi · BLE · 802.15.4 · 3× nRF24 · Sub‑GHz · VHF/UHF · FM/AM/SW/LW/Airband · IR · LoRa/CC1101+NFC Cap
Capabilities · Roadmap · Stage reports · Schematics · Firmware · Русский
Leshy2 is intended to be a hobby device combining spectrum observation, communication, diagnostics and safe experimentation without a mandatory laptop. The first order targets one genuinely working prototype: the factory supplies two populated PCBAs and the owner completes a simple, solder-free final assembly.
Parts list
13 components, 8 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | — | chip | U40 |
| 1 | — | chip_soic8 | U44 |
| 2 | — | chip | J40, J41 |
| 1 | — | chip | BT40 |
| 3 | — | chip | D40, D41, D42 |
| 1 | 10uF | capacitor_cap0805 | Cbulk40 |
| 2 | 100nF | capacitor_cap0402 | Cio40, Cvcc40 |
| 2 | 4.7kΩ | resistor_res0402 | R40, R41 |
More boards in esp32-leshy2
Leshy2 LESHY2-RF-R2 R2 exact placement
80 × 150 mm778 parts6LMIT5
ESP32Leshy2 LESHY2-UI-R2 R2 exact placement
80 × 150 mm430 parts6LMIT5
Power
90 × 70 mm42 parts2LMIT5
Indicators
90 × 70 mm37 parts2LMIT5
Audio
80 × 60 mm19 parts2LMIT5
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