Leaf dongle
About the Leaf dongle PCB
Leaf dongle is an open source PCB design by marcuswu, published on GitHub under the MIT license. It is a 2-layer board measuring 21 × 60.4 mm, with 7 components from 6 distinct parts.
Other key parts include the SN74LVC1T45DCK. By type, the board carries 2 ICs, 2 diodes, 1 connector and 1 resistor.
From the project
During the planning phase for my ULP switches, u/dynam1keNL posted about his mikefives, a radical new build that was diodeless, wireless, portless, and ultra-low power due to use of the Nordic Gazell wireless protocol among other innovations.
During the planning phase for my ULP switches, u/dynam1keNL posted about his mikefives, a radical new build that was diodeless, wireless, portless, and ultra-low power due to use of the Nordic Gazell wireless protocol among other innovations.
The ultra-low power design had me entralled and I knew I had to make a version of my Leaf Fold that builds in some of those features. This became the Leaf Fall.
Main components on the Leaf dongle
Leaf dongle bill of materials (BOM)
7 components, 6 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ~ | Raytac_MDBT42Q_P | U1 |
| 1 | SN74LVC1T45DCK | SOT-363_SC-70-6 | U2 |
| 1 | UP20-C-F-G-FL-P12-TR | SAMESKY_UP20-C-F-G-FL-P12-TR | J1 |
| 1 | ~ | MODULE_RP2040_SHIELD | 1 |
| 2 | SK6812 | LED_SK6812_PLCC4_5.0x5.0mm_P3.2mm | D1, D2 |
| 1 | 5.1k | R_0402_1005Metric | R1 |
Leaf dongle design files
The KiCad project lives in the marcuswu/leaf-fall repository on GitHub; these links point at the commit this page was built from.
- Layoutdongle/leaf_dongle.kicad_pcb
- Schematicdongle/leaf_dongle.kicad_sch
Leaf dongle: common questions
How big is the Leaf dongle PCB?
The Leaf dongle measures 21 × 60.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Leaf dongle?
7 components, from 6 distinct parts. The full bill of materials is listed on this page.
Where can I download the Leaf dongle design files?
From the marcuswu/leaf-fall repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Leaf dongle design in my own project?
Yes, under the terms of its MIT license, which marcuswu chose for the repository.
