Kv4p HT
About the Kv4p HT PCB
Kv4p HT is an open source ESP32 PCB design by ceilingduster, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 86.4 × 50.2 mm, with 87 components from 43 distinct parts.
Its main chip is the ESP32-WROOM-32E-N4, from the ESP32 family. Other key parts include the AZ1117H-3.3TRG1 and CP2102N-A02-GQFN24. By type, the board carries 40 capacitors, 23 resistors, 5 inductors, 4 ICs, 4 connectors and 4 switches.
Main components on the Kv4p HT
Kv4p HT bill of materials (BOM)
87 components, 43 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AZ1117H-3.3TRG1 | SOT-223-3_TabPin2 | U2 |
| 1 | ~ | WIRELM-SMD_G-NICERF_DMR818-AMBE-X | U3 |
| 1 | CP2102N-A02-GQFN24 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U4 |
| 1 | ESP32-WROOM-32E-N4 | ESP32-WROOM-32D | U5 |
| 2 | SS8050 | SOT-23 | Q1, Q2 |
| 1 | Antenna | Conn_SMA_Close-to-board-edge | J1 |
| 1 | SAO v.69bis | PinHeader_2x03_P2.54mm_Vertical_SMD | J2 |
| 1 | GPIO Header | PinHeader_2x04_P2.54mm_Vertical_SMD | J3 |
| 1 | USB-C Socket | USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J5 |
| 2 | 100mA | Fuse_0603_1608Metric | F1, F2 |
| 1 | LFCN-490+ | Filter_Mini-Circuits_FV1206 | FL1 |
| 2 | PTT | SW-Push-SPST-Horizontal-C455252 | SW1, SW2 |
| 1 | Reset | SW_SPST_TL3342 | SW3 |
| 1 | Program | SW_SPST_TL3342 | SW4 |
| 1 | Red | LED_0603_1608Metric | D1 |
| 1 | SK6812SIDE-4020 | LED_SK6805_SIDE | D2 |
| 1 | BLM18KG102SN1D Ferrite Bead, 1A | L_0603_1608Metric | FB1 |
| 1 | LQW2BAN27NJ00L 27nH | L_0805_2115Metric (Murata Inductors) | L1 |
| 1 | LQW2BAN30NG00L 30nH | L_0805_2115Metric (Murata Inductors) | L2 |
| 1 | LQW2BAN43NG00L 43nH | L_0805_2115Metric (Murata Inductors) | L3 |
Show 23 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CMCC | L_CommonMode_Wurth_WE-CNSW-1206 | L7 |
| 1 | Ya basic. 18pF | C_0402_1005Metric | C1 |
| 3 | 100uF 6.3v | CP_EIA-3528-21_Kemet-B | C2, C16, C40 |
| 9 | GCM1885C1H222FA16D 2.2nF Tuned VHF Murata | C_0603_1608Metric | C3, C8, C12, C21, C22, C23, C24, C28 +1 |
| 1 | CC0402JRNPO9BN160 16pF | C_0402_1005Metric | C4 |
| 1 | Ya so basic. 10pF | C_0402_1005Metric | C5 |
| 1 | 5.1pF | C_0402_1005Metric | C6 |
| 4 | 100nF | C_0603_1608Metric | C7, C11, C18, C26 |
| 3 | 1uF | C_0603_1608Metric | C9, C10, C17 |
| 9 | GCM1885C2A221JA16D 220pF Tune UHF Murata | C_0603_1608Metric | C13, C30, C32, C33, C34, C35, C36, C37 +1 |
| 3 | 10uF | C_0805_2012Metric | C14, C19, C20 |
| 2 | 100pF | C_0603_1608Metric | C15, C25 |
| 1 | 2.7pF | C_0402_1005Metric | C27 |
| 1 | 13pF | C_0402_1005Metric | C29 |
| 1 | 11pF | C_0402_1005Metric | C31 |
| 3 | 100k | R_0603_1608Metric | R1, R16, R21 |
| 7 | 10k | R_0603_1608Metric | R2, R5, R9, R10, R11, R13, R15 |
| 5 | 1.2k | R_0603_1608Metric | R3, R6, R18, R19, R20 |
| 1 | 0R | R_1206_3216Metric | R4 |
| 2 | 5.1k | R_0603_1608Metric | R7, R8 |
| 3 | 0R | R_0603_1608Metric | R12, R14, R17 |
| 1 | VHF | R_1206_3216Metric | R22 |
| 1 | UHF | R_1206_3216Metric | R23 |
Kv4p HT design files
The KiCad project lives in the ceilingduster/kv4p-ht-dmr repository on GitHub; these links point at the commit this page was built from.
Kv4p HT: common questions
What microcontroller does the Kv4p HT use?
The Kv4p HT is built around the ESP32-WROOM-32E-N4, from the ESP32 family.
How big is the Kv4p HT PCB?
The Kv4p HT measures 86.4 × 50.2 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Kv4p HT?
87 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 Kv4p HT design files?
From the ceilingduster/kv4p-ht-dmr 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 Kv4p HT design in my own project?
Yes, under the terms of its GPL-3.0 license, which ceilingduster chose for the repository.
Can I test firmware for the Kv4p HT 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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