Telephone Buddy
About the Telephone Buddy PCB
Telephone Buddy is an open source RP2040/RP2350 PCB design by weaslepalace, published on GitHub. It is a 2-layer board measuring 14 × 9 mm, with 130 components from 45 distinct parts.
Its main chip is the SC1633, from the RP2040/RP2350 family. Other key parts include the MCP33141-05-E/MS, MCP48FVB21-E/UN, OPA2994IDR, MIC5317-1.8YM5-TR and TLV9352IDR. By type, the board carries 57 resistors, 42 capacitors, 12 diodes, 9 ICs, 3 connectors and 3 switches.
From the project
Monorepo for PCB design stuff
Main components on the Telephone Buddy
Telephone Buddy bill of materials (BOM)
130 components, 45 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP33141-05-E/MS ~ Microchip Technology | Microchip_MSOP-10 | U201 |
| 1 | MCP48FVB21-E/UN ~ Microchip Technology | Microchip_MSOP-10 | U202 |
| 1 | OPA2994IDR ~ Texas Instruments | Microchip_SOIC_8 | U203 |
| 1 | MIC5317-1.8YM5-TR ~ Microchip Technology | TI_SOT_23_5 | U204 |
| 1 | TLV9352IDR ~ Texas Instruments | TI_SOIC-8 | U205 |
| 1 | MCP1501T-33E/CHY ~ Microchip Technology | Microchip_SOT23-6 | U206 |
| 1 | MP3212DQ-LF-P ~ Monolithic Power Systems Inc. | Monolithic_DFN-10 | U207 |
| 1 | SC1633 ~ Raspberry Pi | RaspberryPi_Pico-2-W | U301 |
| 1 | LP5861TRSMR ~ Texas Instruments | TI_VQFN32 | U302 |
| 1 | E2206KS0E1 2.06" Pervasive Displays | Pervasive_E2206KS0E1 | M101 |
| 1 | DMN3065LW-7 ~ Diodes Incorporated | Diodes_SOT323-3-MOSFET | Q301 |
| 1 | 0955016649 ~ Molex | Molex_RJ11 | J101 |
| 1 | FTSH-105-01-F-D ~ Samtec Inc. | Samtec_FTSH_10pin_Unshrouded | J301 |
| 1 | FH34SRJ-24S-0.5SH(50) ~ Hirose Electric Co Ltd | Hirose_ZIF-24-0.5mm | J302 |
| 3 | PTS810SJG250SMTR LFS ~ C&K | CK_PTS810 | S301, S302, S303 |
| 1 | MMSZ3V3T1G ~ onsemi | onsemi_SOD123 | D201 |
| 4 | SS2040FL-AU_R1_000A1 ~ Panjit International Inc. | SOD-123FL | D202, D302, D309, D310 |
| 7 | EAST1616RGBB2 ~ Everlight Electronics Co Ltd | Everlight_0606-4SMD | D301, D303, D304, D305, D306, D307, D308 |
| 1 | SRN6045TA-330M 33uH Bourns Inc. | Bourns_Inductor-6mmx6mm | L201 |
| 1 | ASPI-4030S-100M-T 10uH Abracon LLC | Abracon_ASPI-4030S | L301 |
Show 25 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | GRM188R61A106ME69D 10uF Murata Electronics | C_0603 | C201, C203, C212, C217, C302, C303 |
| 10 | GCJ188R72A104KA01D 100nF Murata Electronics | C_0603 | C202, C204, C205, C218, C219, C221, C301, C304 +2 |
| 15 | GCJ188R71E105KA01D 1uF Murata Electronics | C_0603 | C206, C210, C220, C222, C306, C307, C308, C311 +7 |
| 4 | GCM1885C2A221JA16D 220pF Murata Electronics | C_0603 | C207, C208, C213, C215 |
| 1 | GCM1885C2A470JA16J 47pF Murata Electronics | C_0603 | C209 |
| 1 | GCM1885C2A101JA16D 100pF Murata Electronics | C_0603 | C211 |
| 1 | GCM1885C2A220JA16D 22pF Murata Electronics | C_0603 | C214 |
| 1 | CL31B106KAHNFNE 10uF Samsung Electro-Mechanics | C_1206 | C216 |
| 1 | CL31B106KBHNNNE 10uF Samsung Electro-Mechanics | C_1206 | C223 |
| 1 | GRM1885C1H102JA01D 1nF Murata Electronics | C_0603 | C309 |
| 1 | CL21B475KOFNFNE 4.7uF Samsung Electro-Mechanics | C_0805 | C319 |
| 4 | RC0603FR-0710RL 10 YAGEO | R_0603 | R201, R202, R213, R223 |
| 12 | RC0603FR-0710KL 10k YAGEO | R_0603 | R203, R204, R211, R225, R226, R229, R301, R302 +4 |
| 1 | RC0603FR-0710K2L 10.2k YAGEO | R_0603 | R205 |
| 1 | RC0603FR-0764K9L 64.9k YAGEO | R_0603 | R206 |
| 2 | 3314J-1-501G 500 Bourns Inc. | Bourns_SMD3-J-Lead-4.5mm | R207, R219 |
| 2 | RC0603FR-0722KL 22k YAGEO | R_0603 | R208, R212 |
| 5 | RC0603FR-07100KL 100k YAGEO | R_0603 | R209, R214, R218, R221, R227 |
| 3 | RC0603FR-0720KL 20k YAGEO | R_0603 | R210, R220, R222 |
| 1 | RC0603FR-0768KL 68k YAGEO | R_0603 | R215 |
| 1 | RC0603FR-0736K5L 36.5k YAGEO | R_0603 | R216 |
| 1 | RC0603FR-0718KL 18k YAGEO | R_0603 | R217 |
| 22 | RC0603FR-07100RL 100 YAGEO | R_0603 | R224, R304, R305, R306, R311, R312, R313, R314 +14 |
| 1 | RC0603FR-0718K2L 18.2k YAGEO | R_0603 | R228 |
| 1 | RL0603FR-070R47L 470m YAGEO | R_0603 | R310 |
Telephone Buddy design files
The KiCad project lives in the weaslepalace/boards repository on GitHub; these links point at the commit this page was built from.
Telephone Buddy: common questions
What microcontroller does the Telephone Buddy use?
The Telephone Buddy is built around the SC1633, from the RP2040/RP2350 family.
How big is the Telephone Buddy PCB?
The Telephone Buddy measures 14 × 9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Telephone Buddy?
130 components, from 45 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 Telephone Buddy design files?
From the weaslepalace/boards 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 Telephone Buddy design in my own project?
The repository has no license, so all rights stay with weaslepalace. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Telephone Buddy without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
More boards in boards
Similar boards
RP2040/RP2350Open Book Abridged Edition
joeycastillo
85 × 115 mm29 parts2LCC-BY-SA-4.08.1k
RP2040/RP2350Corne
foostan
277.2 × 107.5 mm164 parts2LCC-BY-4.07.7k
RP2040/RP2350Corne
277.2 × 107.5 mm164 parts2LCC-BY-4.07.7k
RP2040/RP2350LogicAnalyzer
gusmanb
57 × 55.2 mm6 parts2LGPL-3.05.0k
RP2040/RP2350Jitx design
55.5 × 65 mm26 parts4LGPL-3.05.0k
RP2040/RP2350Pro V2
kata0510
290.1 × 130 mm270 parts2LMIT2.3k