4 layers180.8 × 300.3 mm
Dilemma
Bastardkb/Dilemma
The Dilemma is a vertical stagger low-profile keyboard with mods.
383 parts590
4 layers22.9 × 59.7 mm
LoRa BOB
pete4radio/LoRa_BOBRFM9x feather with PCB 900 MHz antenna
- Size
- 22.9 × 59.7 mm
- Copper layers
- 4
- Thickness
- 1.77 mm
- Parts
- 16
- Nets
- 50
- Pads
- 107
- Tracks, vias
- 122, 25
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 8 Feb 2026
- Updated
- 17 Feb 2026
Overview
LoRa BOB is an open-source printed circuit board by pete4radio, from the pete4radio/LoRa_BOB repository on GitHub. It is a 4-layer board of 22.9 × 59.7 mm with 16 parts on 50 nets, routed with 122 tracks and 25 vias.
It is built around the 74HC4050D and XC6210B332MR-G. Its parts include 4 capacitors, 3 resistors, 3 ICs, 3 diodes and 1 inductor. It belongs with the radio and wireless boards of this library.
Main components
2
74HC4050D
SOP-16SOP-16 Specialty Logic ROHSToshibaSpecialty Logic
XC6210B332MR-G
SOT-25-5-40℃~+85℃@(Ta) 1 100mV@(200mA) 3.3V 55uA 60dB@(1kHz) 6V 700mA Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-25-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdLoRa_BOB
RFM9x feather with PCB 900 MHz antenna
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 500 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3 |
| 2 | 10uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 1 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 12n | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 1 | 1597-1488-ND | RF_Module:HOPERF_RFM9XW_SMD | U1 |
| 1 | 1p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 1 | 74HC4050D | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | Adafruit_Feather_RFM9x_LoRa_Radio | Module:Adafruit_Feather_M0_RFM | A1 |
| 1 | Antenna | RF_Antenna:Texas_SWRA416_868MHz_915MHz | AE1 |
| 1 | LTST-C192KGKT-5A Yellow-Green | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | LTST-C193KFKT-5A Yellow | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | LTST_C-192KRKT-5A Red | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | XC6210B332MR-G | Package_TO_SOT_SMD:SOT-23-5 | U2 |
Questions
How big is the LoRa BOB PCB?
It measures 22.9 × 59.7 mm and has 4 copper layers, 1.77 mm thick.
What parts does the LoRa BOB use?
16 parts, built around the 74HC4050D and XC6210B332MR-G. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the LoRa BOB KiCad files?
From the pete4radio/LoRa_BOB repository on GitHub, at the commit this page was made from: the board is LoRa_BOB.kicad_pcb and its schematic LoRa_BOB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LoRa BOB design in my own project?
Its repository states no licence, so its author keeps all rights: ask pete4radio before reusing the design.
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