Iot alfa
javierlopezfraile·iot_alfa·diseño_v2/diseño_v2/diseño_v2.kicad_pcb
About the Iot alfa PCB
Iot alfa is an open source ESP32 PCB design by javierlopezfraile, published on GitHub. It is a 2-layer board measuring 50.1 × 61 mm, with 40 components from 28 distinct parts.
Its main chip is the ESP32-WROOM-32E, from the ESP32 family. Other key parts include the AP2112K-3.3, TP4056-42-ESOP8, MPU-6050 and MLX90614ESF-AAA-000-TU. By type, the board carries 14 capacitors, 8 resistors, 6 connectors, 5 ICs, 3 switches and 3 diodes.
It belongs with the iot & wireless designs in this gallery.
Main components on the Iot alfa
Iot alfa bill of materials (BOM)
40 components, 28 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32E | ESP32-WROOM-32E-USER | U1 |
| 1 | AP2112K-3.3 | SOT-23-5 | U2 |
| 1 | TP4056-42-ESOP8 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm_ThermalVias | U3 |
| 1 | MPU-6050 | InvenSense_QFN-24_4x4mm_P0.5mm | U4 |
| 1 | MLX90614ESF-AAA-000-TU | TO254P912H435-4 | U5 |
| 1 | USB_B_Micro | USB_Micro-B_XKB_U254-051T-4BH83-F1S | J1 |
| 1 | Conn_01x02_Socket | JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J2 |
| 3 | Conn_01x04_Socket | PinSocket_1x04_P2.54mm_Vertical | J3, J4, J5 |
| 1 | Conn_01x08_Socket | PinSocket_1x08_P2.54mm_Vertical | J6 |
| 1 | CPT-1796-3TH | SPKR_CPT-1796-3TH | LS1 |
| 1 | MSS-102559-14A-D | SW_MSS-102559-14A-D | S1 |
| 2 | TS02-66-60-BK-160-LCR-D | SW_TS02-66-60-BK-160-LCR-D | S2, S3 |
| 1 | LED GREEN | LED_D3.0mm | D1 |
| 1 | LED RED | LED_D3.0mm | D2 |
| 1 | LED BLUE | LED_D3.0mm | D3 |
| 3 | 1u | C_0805_2012Metric | C1, C2, C3 |
| 4 | 0.1u | C_0805_2012Metric | C4, C7, C8, C11 |
| 1 | 22u | C_0805_2012Metric | C5 |
| 1 | 100nF | C_0805_2012Metric | C6 |
| 1 | 10n | C_0805_2012Metric | C9 |
Show 8 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2.2n | C_0805_2012Metric | C10 |
| 2 | 100n | C_0805_2012Metric | C12, C14 |
| 1 | 10 | C_0805_2012Metric | C13 |
| 3 | 1k | R_0805_2012Metric | R1, R2, R9 |
| 1 | 4k | R_0805_2012Metric | R3 |
| 1 | 10k | R_0805_2012Metric | R4 |
| 2 | 2.2k | R_0805_2012Metric | R5, R6 |
| 1 | 5k | R_0805_2012Metric | R7 |
Iot alfa design files
The KiCad project lives in the javierlopezfraile/iot_alfa repository on GitHub; these links point at the commit this page was built from.
Iot alfa: common questions
What microcontroller does the Iot alfa use?
The Iot alfa is built around the ESP32-WROOM-32E, from the ESP32 family.
How big is the Iot alfa PCB?
The Iot alfa measures 50.1 × 61 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Iot alfa?
40 components, from 28 distinct parts. The full bill of materials is listed on this page.
Where can I download the Iot alfa design files?
From the javierlopezfraile/iot_alfa repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Iot alfa design in my own project?
The repository has no license, so all rights stay with javierlopezfraile. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Iot alfa 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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