NoU3-Lite
About the NoU3-Lite PCB
NoU3-Lite is an open source ESP32 PCB design by AlfredoSystems, published on GitHub. It is a 4-layer board measuring 46 × 46 mm, with 87 components from 49 distinct parts.
Its main chip is the ESP32-S3FN8, from the ESP32 family. Other key parts include the HR8833, CRYSTAL_ESP32, SERVOPORTS_2X3, C2681588 and USBLC6-2P6. By type, the board carries 30 capacitors, 14 ICs, 14 connectors, 14 resistors, 5 test points and 5 diodes.
Main components on the NoU3-Lite
NoU3-Lite bill of materials (BOM)
87 components, 49 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | HR8833 | HR8833 | U1, U4, U5 |
| 1 | ESP32-S3FN8 | QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U2 |
| 1 | CRYSTAL_ESP32 Crystal_ESP32 | Crystal_SMD_2016-4Pin_2.0x1.6mm | U3 |
| 3 | SERVOPORTS_2X3 ServoPorts_2x3 | ServoPorts_2x3 | U7, U18, U19 |
| 1 | C2681588 5.8 ZSPT | XKB5858-Z-75 | U8 |
| 1 | USBLC6-2P6 | SOT-666 | U9 |
| 1 | QWIIC1 Qwiic1 | JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | U11 |
| 2 | SY8113BADC | TSOT-23-6 | U15, U16 |
| 1 | C165948 USB_C_Receptacle | USB_TYPE-C-31-M-12 | U17 |
| 1 | AO3401A | SOT-23-small | Q1 |
| 4 | C160392 JST SR/SZ | JST_SH_1x06_Vertical | J1, J4, J7, J17 |
| 6 | SCREW_TERMINAL_01X02 Screw_Terminal_01x02 | TerminalBlock_Ningbo_2P_5mm | J2, J3, J5, J6, J8, J9 |
| 1 | RFANT3216120A5T | C_1206_3216Metric | J14 |
| 1 | C84007 Barrel_Jack | DC-005C_1 | J15 |
| 1 | VIN | PinSocket_1x01_P2.54mm_Vertical | J16 |
| 1 | GND | PinSocket_1x01_P2.54mm_Vertical | J18 |
| 1 | C115357 reset | Button_SKRKAEE020 | SW1 |
| 1 | C115357 boot | Button_SKRKAEE020 | SW2 |
| 1 | RX0 | PogoPad1 | TP1 |
| 1 | TX0 | PogoPad1 | TP2 |
Show 29 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | GND | PogoPad1 | TP3 |
| 1 | Svin | PogoPad1 | TP20 |
| 1 | Sver | PogoPad1 | TP21 |
| 1 | Z5V6 | D_SOD-323 | D1 |
| 1 | 1N5819 | D_SOD-323 | D2 |
| 1 | Z3V3 | D_SOD-323 | D3 |
| 1 | C2895474 LED_blue | LED_3mm | D5 |
| 1 | C2895476 LED_green | LED_3mm | D6 |
| 2 | 4.7UH 4.7uH | LVF252A12 | L1, L2 |
| 7 | 100NF 100nF | C_0402_1005Metric | C1, C15, C25, C26, C28, C29, C30 |
| 4 | 10NF 10nF | C_0402_1005Metric | C3, C6, C9, C34 |
| 3 | 2.2UF 2.2uF | C_0402_1005Metric | C4, C7, C10 |
| 2 | 10UF 10uF | C_0805_2012Metric | C5, C8 |
| 1 | 100PF 100pF | C_0402_1005Metric | C14 |
| 1 | C4747974 ~ | CP_Elec_6.3x7.7 | C16 |
| 1 | 10UF 10uF | C_0402_1005Metric | C21 |
| 2 | C96446 10uF,25V | C_0603_1608Metric | C22, C23 |
| 3 | 1UF 1uF | C_0402_1005Metric | C24, C27, C31 |
| 4 | 10PF 10pF | C_0402_1005Metric | C32, C33, C37, C38 |
| 2 | C59461 22uF, 6V3 | C_0603_1608Metric | C35, C36 |
| 4 | 1K | R_0402_1005Metric | R5, R17, R18, R29 |
| 1 | 10K | R_0402_1005Metric | R10 |
| 1 | 68K | R_0402_1005Metric | R11 |
| 2 | 15K | R_0402_1005Metric | R12, R26 |
| 1 | 33K | R_0402_1005Metric | R13 |
| 1 | 4K7 | R_0402_1005Metric | R14 |
| 2 | 5.1K | R_0402_1005Metric | R15, R16 |
| 1 | 2K2 | R_0402_1005Metric | R27 |
| 1 | 6K8 | R_0402_1005Metric | R30 |
NoU3-Lite design files
The KiCad project lives in the AlfredoSystems/NoU3-Hardware repository on GitHub; these links point at the commit this page was built from.
NoU3-Lite: common questions
What microcontroller does the NoU3-Lite use?
The NoU3-Lite is built around the ESP32-S3FN8, from the ESP32 family.
How big is the NoU3-Lite PCB?
The NoU3-Lite measures 46 × 46 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the NoU3-Lite?
87 components, from 49 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 NoU3-Lite design files?
From the AlfredoSystems/NoU3-Hardware 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 NoU3-Lite design in my own project?
The repository has no license, so all rights stay with AlfredoSystems. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the NoU3-Lite 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.
More boards in NoU3-Hardware
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k