ESP32U-WROOM Wireless IEM Transmitter
About the ESP32U-WROOM Wireless IEM Transmitter PCB
ESP32U-WROOM Wireless IEM Transmitter is an open source PCB design by dlmuschamp, published on GitHub. It is a 2-layer board measuring 90.5 × 55.3 mm, with 43 components from 23 distinct parts.
Other key parts include the PCM1808PWG4, LM3940IMPX-3.3_NOPB and CP2102C-AXX-XQFN24. By type, the board carries 20 capacitors, 14 resistors, 3 ICs, 2 transistors, 2 connectors and 1 switch.
It belongs with the iot & wireless and displays & leds designs in this gallery.
From the project
A repo to store my code and schematics for a custom wireless IEM pack built using 2 ESP32s and some TFT displays.
Main components on the ESP32U-WROOM Wireless IEM Transmitter
ESP32U-WROOM Wireless IEM Transmitter bill of materials (BOM)
43 components, 23 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PCM1808PWG4 | SOP65P640X120-14N | U1 |
| 1 | LM3940IMPX-3.3_NOPB | SOT230P700X180-4N | U4 |
| 1 | CP2102C-AXX-XQFN24 CP2102C-Axx-xQFN24 | WQFN-24-1EP_4x4mm_P0.5mm_EP2.45x2.45mm | U5 |
| 2 | S8050 | SOT-23 | Q1, Q2 |
| 1 | AUDIOJACK3 AudioJack3 | Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J2 |
| 1 | USB_C_RECEPTACLE_USB2.0_16P USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J6 |
| 1 | C431540 ON/OFF | SW_SPDT_Shouhan_MSK12C02 | SW4 |
| 1 | SP0503BAHT | SOT-143 | D1 |
| 2 | 22U 22u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C30 |
| 7 | 0.1U 0.1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C17, C19, C21, C25, C27, C31 |
| 3 | 10UF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12, C18, C20 |
| 2 | 1UF 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13, C15 |
| 2 | 1NF 1nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C14, C16 |
| 1 | 0.47U 0.47u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C22 |
| 1 | 33U 33u | CP_EIA-3528-12_Kemet-T_HandSolder | C23 |
| 2 | 4.7U 4.7u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C24, C26 |
| 4 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R8, R11, R30 |
| 2 | 120 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R12, R13 |
| 3 | 100K 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R15, R16 |
| 2 | 5.1K 5.1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23, R24 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 22K 22k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R25 |
| 1 | 47K 47k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R26 |
| 1 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R27 |
ESP32U-WROOM Wireless IEM Transmitter design files
The KiCad project lives in the dlmuschamp/ESP32IEMPack repository on GitHub; these links point at the commit this page was built from.
ESP32U-WROOM Wireless IEM Transmitter: common questions
How big is the ESP32U-WROOM Wireless IEM Transmitter PCB?
The ESP32U-WROOM Wireless IEM Transmitter measures 90.5 × 55.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ESP32U-WROOM Wireless IEM Transmitter?
43 components, from 23 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 ESP32U-WROOM Wireless IEM Transmitter design files?
From the dlmuschamp/ESP32IEMPack 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 ESP32U-WROOM Wireless IEM Transmitter design in my own project?
The repository has no license, so all rights stay with dlmuschamp. Use it as a reference, and ask the author before reusing the design.
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