Lora daughterboard
About the Lora daughterboard PCB
Lora daughterboard is an open source ESP32 PCB design by Tinkerbug-Robotics, published on GitHub under the GPL-3.0 license. It is a 6-layer board measuring 22 × 27.5 mm, with 66 components from 37 distinct parts.
Its main chip is the ESP32-S3RH2, from the ESP32 family. Other key parts include the TPS62913RPUR, E220-900MM22S and W25Q128JVYIQ. By type, the board carries 28 capacitors, 15 resistors, 4 ICs, 4 inductors, 3 connectors and 3 diodes.
It belongs with the rf & radio designs in this gallery.
From the project
Model rocket flight computer, ground station, iOS app, and simulation
KiCad design sources for the TinkerRocket boards. Imported from the local Circuit Board Designs/ folder — see #596 for the rationale and the size analysis behind what is and isn't tracked here.
These design files are licensed under the CERN Open Hardware Licence v2 — Strongly Reciprocal (CERN-OHL-S-2.0), which is separate from the GPL covering the software. If you distribute a product based on them, or publish a modified design, the complete sources must be available under the same licence.
Main components on the Lora daughterboard
Lora daughterboard bill of materials (BOM)
66 components, 37 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS62913RPUR QST | IC_TPS62913RPUR | U3 |
| 1 | E220-900MM22S | E220-900MM22S | U14 |
| 1 | W25Q128JVYIQ Abracon | 24-WLCSP_Y_WIN | U22 |
| 1 | ESP32-S3RH2 Texas Instruments | IC_ESP32-S3 | U28 |
| 1 | ABS07-32.768KHZ-T | XTAL_SC-32S_3215 | Y5 |
| 1 | ECS-400-10-37B2-CKY-TR | XTAL_ECS-400-10-37B2-CKY-TR | Y6 |
| 1 | USB4110-GF-A USB4110GFA JILN | GCT_USB4110GFA | J2 |
| 1 | BM04B-SRSS-TB Conn_01x04 GCT | JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J6 |
| 1 | CON-SMA-EDGE-S JST | RFSOLUTIONS_CON-SMA-EDGE-S | J8 |
| 2 | CUS10S30,H3F CUS10S30_H3F Littelfuse | USC_TOS | CR1, CR3 |
| 2 | SP0503BAHTG | TVS-SP05_LTF | CR2, CR4 |
| 1 | SMF10A | SODFL3617X108N | CR6 |
| 1 | DLW21SN670HQ2L Murata | FIL_DLW21SN670HQ2L | FL1 |
| 1 | R-667995 | R-667995_MIT | S3 |
| 1 | APHHS1005QBC/D Blue onsemi | LED_0402_1005Metric | D4 |
| 1 | NCD0402R1 Red | LED_0402_1005Metric | D5 |
| 1 | XL-1005UGC Green Xinglight | LED_0402_1005Metric | D6 |
| 1 | 782853200 | WE-CBA_0805_W4.0 | FB1 |
| 1 | VLS3012CX-2R2M-1 TDK | IND_VLS3012CX-2R2M-1 | L8 |
| 1 | LQW15AN24NH00D 24 nH | L_0402_1005Metric | L10 |
Show 17 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LQG15HS2N0S02D 2 nH Bourns | L_0402_1005Metric | L11 |
| 1 | CC0402KRX7R9BB222 2.2 nF Samsung | C_0402_1005Metric | C7 |
| 8 | CL21A226MOQNNNE 22 uF Samsung | C_0805_2012Metric | C8, C9, C11, C12, C13, C14, C15, C16 |
| 1 | CL05A474KP5NNNC 470 nF Samsung | C_0402_1005Metric | C10 |
| 7 | CL05B104KO5NNNC 100 nF Samsung | C_0402_1005Metric | C17, C18, C97, C99, C101, C103, C104 |
| 2 | CL05C220JB5NNNC 22 pF Samsung | C_0402_1005Metric | C89, C91 |
| 2 | CL05C120JB5NNNC 12 pF Samsung | C_0402_1005Metric | C90, C92 |
| 3 | CL05A105KO5NNNC 1 uF Samsung | C_0402_1005Metric | C95, C100, C105 |
| 3 | CL05A106MQ5NUNC 10 uF | C_0402_1005Metric | C96, C102, C106 |
| 1 | CL05B103KB5NNNC 10 nF Samsung | C_0402_1005Metric | C98 |
| 2 | RC0402FR-075K11L 5.11 k Yageo | R_0402_1005Metric | R1, R5 |
| 6 | RC0402FR-0710KL 10 k Yageo | R_0402_1005Metric | R3, R59, R60, R73, R74, R79 |
| 1 | RC0402FR-0715K4L 15.4 k | R_0402_1005Metric | R6 |
| 1 | RC0402FR-074K87L 4.87 k | R_0402_1005Metric | R7 |
| 2 | RC0402FR-0722RL 22 Yageo | R_0402_1005Metric | R75, R76 |
| 2 | RC0402FR-071KL 1 k Yageo | R_0402_1005Metric | R77, R78 |
| 1 | RC0402FR-07100KL 100 k Yageo | R_0402_1005Metric | R80 |
Lora daughterboard design files
The KiCad project lives in the Tinkerbug-Robotics/TinkerRocket repository on GitHub; these links point at the commit this page was built from.
Lora daughterboard: common questions
What microcontroller does the Lora daughterboard use?
The Lora daughterboard is built around the ESP32-S3RH2, from the ESP32 family.
How big is the Lora daughterboard PCB?
The Lora daughterboard measures 22 × 27.5 mm, has 6 copper layers and is 1.5765 mm thick.
How many components are on the Lora daughterboard?
66 components, from 37 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Lora daughterboard design files?
From the Tinkerbug-Robotics/TinkerRocket repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Lora daughterboard design in my own project?
Yes, under the terms of its GPL-3.0 license, which Tinkerbug-Robotics chose for the repository.
Can I test firmware for the Lora daughterboard without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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