Esp32s2-lepton
About the Esp32s2-lepton PCB
Esp32s2-lepton is an open source ESP32 PCB design by gregdavill, published on GitHub. It is a 4-layer board measuring 34.6 × 30.8 mm, with 62 components from 34 distinct parts.
Its main chip is the ESP32-S2, from the ESP32 family. Other key parts include the USBLC6-2P6, TLV62569DRLR, W25Q32JVZPIQ, BQ24072RGT and TLV733P. By type, the board carries 23 capacitors, 16 resistors, 7 ICs, 5 inductors, 3 connectors and 3 switches.
It belongs with the displays & leds, power & battery and dev boards & breakouts designs in this gallery.
From the project
1 circuit board design a day for 31 days.
ESP32s2 + Lepton 3.5 + Battery charger + 240x240 pixel LCD
Main components on the Esp32s2-lepton
Esp32s2-lepton bill of materials (BOM)
62 components, 34 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USBLC6-2P6 USBLC6-2 | SOT-666 | U1 |
| 1 | TLV62569DRLR TLV62569DRL | SOT-666 | U2 |
| 1 | ESP32-S2 | QFN-56-1EP_7x7mm_P0.4mm_EP5.6x5.6mm | U3 |
| 1 | W25Q32JVZPIQ | WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4mm | U4 |
| 1 | BQ24072RGT | VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U6 |
| 2 | TLV733P | Texas_X2SON-4_1x1mm_P0.65mm | U7, U8 |
| 1 | Q_NMOS_GSD | SOT-883 | Q1 |
| 1 | ASCO | Oscillator_SMD_Abracon_ASCO-4Pin_1.6x1.2mm | X1 |
| 1 | SX20Y040000BC1T 40MHz | Crystal_SMD_4Pin_2.0x1.6mm | Y1 |
| 1 | USB4105-GF-A USB_C | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | Conn_01x15_MountingPin | FH26W-15S-0.3SHW(60) | J2 |
| 1 | S2B-PH-SM4-TB(LF)(SN) JST | BM02B-GHS-TBT | J4 |
| 1 | SLDA31-2R400G-S2TF Antenna | Ant_3216 | AE1 |
| 1 | LEPTON | 1050281001 | LEP1 |
| 3 | SW_Push | EVQP4 | SW1, SW2, SW3 |
| 3 | BLM15BC241SN1D 240R | L_0402_1005Metric | FB1, FB2, FB3 |
| 1 | SLM20122R2MIT 2.2uH | L_0805_2012Metric | L1 |
| 1 | TBD | L_0402_1005Metric | L2 |
| 3 | CC0402KRX5R6BB475 4.7uF | C_0402_1005Metric | C1, C21, C22 |
| 5 | CC0402MRX5R5BB225 2.2uF | C_0402_1005Metric | C2, C7, C17, C18, C24 |
Show 14 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | CC0402GRNPO9BN180 18pF | C_0402_1005Metric | C3, C4 |
| 1 | CC0402CRNPO9BN6R8 6.8pF | C_0402_1005Metric | C5 |
| 3 | CC0402KRX5R6BB105 1uF | C_0402_1005Metric | C6, C23, C25 |
| 3 | CC0603KRX5R5BB106 10u | C_0603_1608Metric | C8, C14, C19 |
| 4 | CC0402ZRY5V7BB104 100n | C_0402_1005Metric | C9, C12, C13, C15 |
| 2 | TBD | C_0402_1005Metric | C10, C11 |
| 1 | RC0402FR-071ML 1M | R_0402_1005Metric | R1 |
| 2 | RC0402FR-075K1L 5k1 | R_0402_1005Metric | R2, R3 |
| 2 | RC0402FR-0722RL 22R | R_0402_1005Metric | R4, R5 |
| 1 | RC0402FR-07210KL 210k | R_0402_1005Metric | R6 |
| 1 | RC0402FR-0747KL 47k | R_0402_1005Metric | R7 |
| 7 | RC0402FR-0710KL 10k | R_0402_1005Metric | R8, R12, R13, R14, R15, R16, R17 |
| 1 | 33R | R_0402_1005Metric | R11 |
| 1 | 10k | R_0402_1005Metric | R18 |
Esp32s2-lepton design files
The KiCad project lives in the gregdavill/advent-calendar-of-circuits-2020 repository on GitHub; these links point at the commit this page was built from.
Esp32s2-lepton: common questions
What microcontroller does the Esp32s2-lepton use?
The Esp32s2-lepton is built around the ESP32-S2, from the ESP32 family.
How big is the Esp32s2-lepton PCB?
The Esp32s2-lepton measures 34.6 × 30.8 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Esp32s2-lepton?
62 components, from 34 distinct parts. The full bill of materials is listed on this page.
Where can I download the Esp32s2-lepton design files?
From the gregdavill/advent-calendar-of-circuits-2020 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Esp32s2-lepton design in my own project?
The repository has no license, so all rights stay with gregdavill. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Esp32s2-lepton 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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