2 2021
About the 2 2021 PCB
2 2021 is an open source PCB design by molgan-tellus, published on GitHub. It is a 2-layer board measuring 55.9 × 20.3 mm, with 14 components from 6 distinct parts.
Other key parts include the Core2021-XF. By type, the board carries 6 resistors, 4 capacitors, 2 ICs and 2 connectors.
From the project
Bärarkort 55,88 × 20,32 mm (samma storlek som Makerdiary nRF9151 Connect Kit) med två Waveshare Core2021-XF/LF-moduler (Semtech LR2021, dubbelband LoRa). KiCad 9, helt genererat av python-skript. 2 lager.
Bärarkort 55,88 × 20,32 mm (samma storlek som Makerdiary nRF9151 Connect Kit) med två Waveshare Core2021-XF/LF-moduler (Semtech LR2021, dubbelband LoRa). KiCad 9, helt genererat av python-skript. 2 lager.
- Delad SPI-buss (CLK/MOSI/MISO) till båda modulerna; MISO är Hi-Z när NSS är hög, så bussdelning är säker. - Unika signaler per modul: CS, RESET, BUSY, IRQ (DIO11). - Separat brytbar 3,3 V per modul: 3V30 och 3V31 är egna stift på J1 och matas från kraftkortet 1stps62823, som har 2× brytbara π-filtrerade radiorails (ENRF1/ENRF2 via dess TCA6408A-expander, I2C 0x20) — all omkoppling sker…
Main components on the 2 2021
2 2021 bill of materials (BOM)
14 components, 6 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | Core2021-XF | Core2021-XF | U0, U1 |
| 1 | PinHeader_2x05_P2.54mm_Vertical | PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | PinHeader_2x03_P2.54mm_Vertical | PinHeader_2x03_P2.54mm_Vertical | J2 |
| 2 | C_0805_2012Metric | C_0805_2012Metric | C1, C3 |
| 2 | C_0603_1608Metric | C_0603_1608Metric | C2, C4 |
| 6 | R_0603_1608Metric | R_0603_1608Metric | R1, R2, R3, R4, R5, R6 |
2 2021 design files
The KiCad project lives in the molgan-tellus/2_2021 repository on GitHub; these links point at the commit this page was built from.
- Layoutdual_lr2021.kicad_pcb
- Schematicdual_lr2021.kicad_sch
2 2021: common questions
How big is the 2 2021 PCB?
The 2 2021 measures 55.9 × 20.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 2 2021?
14 components, from 6 distinct parts. The full bill of materials is listed on this page.
Where can I download the 2 2021 design files?
From the molgan-tellus/2_2021 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 2 2021 design in my own project?
The repository has no license, so all rights stay with molgan-tellus. Use it as a reference, and ask the author before reusing the design.