Fluepdot
About the Fluepdot PCB
Fluepdot is an open source ESP32 PCB design by Fluepke, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 70 × 65 mm, with 111 components from 43 distinct parts.
Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the TPS54331DR, ULN2803ADWR, 74HCT595, SP3485EN and CP2102N-A01-GQFN28. By type, the board carries 27 resistors, 23 diodes, 22 transistors, 17 capacitors, 9 ICs and 3 connectors.
From the project
Project for controlling Annax flipdot panels used by the Berliner Verkehrsbetriebe
Fluepdot is a hardware and C project for controlling flip disc panels which where in use by the Berlin public transport operator BVG.
Flipdots and required HW can be purchased by contacting fluepdot-sales@luepke.email.
Distributed under the terms of the GNU Affero General Public License version 3.
The full license is in the file LICENSE, distributed with this software.
Main components on the Fluepdot
Fluepdot bill of materials (BOM)
111 components, 43 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS54331DR TPS54331DR | SOIC-8_3.9x4.9mm_P1.27mm | IC1 |
| 3 | ULN2803ADWR ULN2803ADWR | SOIC-18W_7.5x11.6mm_P1.27mm | IC2, IC3, IC4 |
| 3 | 74HCT595 | SOIC-16_3.9x9.9mm_P1.27mm | IC5, IC6, IC7 |
| 1 | SP3485EN CP2102-GMR | SOIC-8_3.9x4.9mm_P1.27mm | IC8 |
| 1 | CP2102N-A01-GQFN28 | QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U3 |
| 3 | SS8050 | SOT-23 | Q2, Q6, Q7 |
| 1 | SS8550 SS8550 | SOT-23 | Q3 |
| 1 | AO3400A AO3400A | SOT-23 | Q4 |
| 17 | AO3401A AO3401A | SOT-23 | Q5, Q8, Q9, Q10, Q11, Q12, Q13, Q14 +9 |
| 1 | USB_B | USB_B_OST_USB-B1HSxx_Horizontal | J1 |
| 1 | CONN_01X10_FEMALE Conn_01x10_Female | TerminalBlock_Phoenix_MPT-0,5-10-2.54_1x10_P2.54mm_Horizontal | J2 |
| 1 | CONN_02X17_ODD_EVEN Conn_02x17_Odd_Even | PinHeader_2x17_P2.54mm_Vertical | J3 |
| 1 | CONN_02X05_COUNTER_CLOCKWISE Conn_02x05_Counter_Clockwise | PinHeader_2x05_P2.54mm_Vertical | DEBUG1 |
| 1 | ESP32-WROOM-32 | ESP32-WROOM-32 | ESP32 |
| 1 | 3A 12D1300C | Fuse_1206_3216Metric | F1 |
| 1 | 500MA 500mA nSMD050 | Fuse_1206_3216Metric | F2 |
| 1 | PWR 17-21SUYC/TR8 | D_0805_2012Metric | PWR1 |
| 1 | TS-1187A-B-A-B TS-1187A-B-A-B | TS1187ABAB | S1 |
| 1 | SMF05CT1G SMF05CT1G | SOT-363_SC-70-6 | TVS1 |
| 1 | LED1 17-21SUYC/TR8 | D_0805_2012Metric | LED1 |
Show 23 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LED2 17-21SUYC/TR8 | D_0805_2012Metric | LED2 |
| 4 | SS34 SS34 | D_SMA | D1, D6, D7, D8 |
| 2 | SS14 SS14 | D_SMA | D2, D23 |
| 16 | SM4007PL SM4007PL | D_SOD-123F | D3, D5, D9, D10, D11, D12, D13, D14 +8 |
| 1 | USB 17-21SUYC/TR8 | D_0805_2012Metric | D4 |
| 1 | 8.2UH 8.2uH MWSA0603-8R2MT | SMD-PIND-6.6x7.1x3.0_1.6x3.0 | L1 |
| 9 | 100NF 100nF CC0603KRX7R9BB104 | C_0603_1608Metric | C1, C2, C6, C8, C9, C11, C14, C16 +1 |
| 2 | 4.7UF 4.7uF CL21A475KAQNNNE | C_0805_2012Metric | C3, C4 |
| 2 | 10NF 10nF 0603B103K500NT | C_0603_1608Metric | C5, C7 |
| 1 | 1UF 1uF CL10A105KB8NNNC | C_0603_1608Metric | C10 |
| 1 | 1NF 1nF CL10B102KB8NNNC | C_0603_1608Metric | C13 |
| 1 | 47PF 47pF CL10C470JB8NNNC | C_0603_1608Metric | C21 |
| 1 | 100UF 100uF TAJB107K006RNJ | CP_EIA-3528-21_Kemet-B | C22 |
| 11 | 10K 10k 0603WAF1002T5E | R_0603_1608Metric | R3, R4, R5, R8, R11, R12, R13, R15 +3 |
| 1 | 30K 30k 0603WAF1002T5E | R_0603_1608Metric | R6 |
| 1 | 4.7K 4.7k 0603WAF4701T5E | R_0603_1608Metric | R7 |
| 1 | 270R 0603WAF2700T5E | R_0603_1608Metric | R9 |
| 3 | 270 0603WAF2700T5E | R_0603_1608Metric | R10, R22, R23 |
| 1 | 470R 0603WAF4700T5E | R_0603_1608Metric | R14 |
| 1 | 1k 0603WAF1001T5E | R_0603_1608Metric | R17 |
| 1 | 3k 0603WAF3001T5E | R_0603_1608Metric | R19 |
| 1 | 240 0603WAF2400T5E | R_0603_1608Metric | R20 |
| 6 | R_PACK04 R_Pack04 4D03WGJ0103T5E | R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4, RN5, RN6 |
Fluepdot design files
The KiCad project lives in the Fluepke/Fluepdot repository on GitHub; these links point at the commit this page was built from.
Fluepdot: common questions
What microcontroller does the Fluepdot use?
The Fluepdot is built around the ESP32-WROOM-32, from the ESP32 family.
How big is the Fluepdot PCB?
The Fluepdot measures 70 × 65 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Fluepdot?
111 components, from 43 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 Fluepdot design files?
From the Fluepke/Fluepdot repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Fluepdot design in my own project?
Yes, under the terms of its AGPL-3.0 license, which Fluepke chose for the repository.
Can I test firmware for the Fluepdot 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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