K9AY with wifi
About the K9AY with wifi PCB
K9AY with wifi is an open source ESP8266 PCB design by ra0sms, published on GitHub under the MIT license. It is a 2-layer board measuring 144.2 × 108.1 mm, with 137 components from 58 distinct parts.
Its main chip is the ESP-12F, from the ESP8266 family. Other key parts include the 74HC595, ULN2003A, K7803-500R3, K7805-500R3 and 74HC04. By type, the board carries 44 resistors, 33 capacitors, 21 diodes, 12 relays, 10 ICs and 5 transistors.
It belongs with the iot & wireless and rf & radio designs in this gallery.
From the project
Receive antenna K9AY with WI-FI control interface
Main components on the K9AY with wifi
K9AY with wifi bill of materials (BOM)
137 components, 58 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP-12F | ESP-12E | U1 |
| 2 | 74HC595 | SOIC-16_3.9x9.9mm_P1.27mm | U2, U3 |
| 2 | ULN2003A | SOIC-16_3.9x9.9mm_P1.27mm | U4, U8 |
| 1 | K7803-500R3 | TO-220-3_Vertical | U5 |
| 1 | K7805-500R3 | TO-220-3_Vertical | U6 |
| 1 | 74HC04 | SOIC-14_3.9x8.7mm_P1.27mm | U7 |
| 1 | CH340C | SOIC-16_3.9x9.9mm_P1.27mm | U11 |
| 1 | USBLC6 | SOT-23-6 | U12 |
| 2 | MMBFJ310 | SOT-23 | Q1, Q4 |
| 2 | BC817 | SOT-23 | Q2, Q3 |
| 1 | IRLML5203 | SOT-23 | Q5 |
| 1 | LOOPS | TerminalBlock_MetzConnect_Type011_RT05505HBWC_1x05_P5.00mm_Horizontal | J3 |
| 1 | 12V | TerminalBlock_MetzConnect_Type011_RT05502HBWC_1x02_P5.00mm_Horizontal | J4 |
| 1 | USB_B_Micro | USB_Mini-B_Wuerth_65100516121_Horizontal | J5 |
| 1 | RF_OUT | PinSocket_1x02_P2.54mm_Vertical | J6 |
| 1 | MANUAL_SWITCH | TerminalBlock_MaiXu_MX126-5.0-12P_1x12_P5.00mm | J7 |
| 1 | 6T:2T | Transformer_BN73-202 | BN73-202 |
| 3 | G5V-2 | Relay_DPDT_Omron_G5V-2 | K1, K2, K4 |
| 1 | Tianbo HJR 1-2C-12V | Relay_DPDT_Omron_G5V-2 | K3 |
| 8 | TIANBO-HJR-4102-L | Relay_SPDT_HJR-4102 | K5, K6, K7, K8, K9, K10, K11, K12 |
Show 38 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ~ | Transformer_J310 | T1, T2 |
| 5 | MBR0520 | D_SOD-123 | D1, D3, D6, D7, D8 |
| 1 | PWR | LED_1206_3216Metric | D2 |
| 1 | WI-FI | LED_1206_3216Metric | D4 |
| 1 | N | LED_1206_3216Metric | D5 |
| 1 | NE | LED_1206_3216Metric | D9 |
| 1 | E | LED_1206_3216Metric | D10 |
| 1 | SE | LED_1206_3216Metric | D11 |
| 1 | SW | LED_1206_3216Metric | D12 |
| 1 | W | LED_1206_3216Metric | D13 |
| 1 | NW | LED_1206_3216Metric | D14 |
| 1 | PA | LED_1206_3216Metric | D15 |
| 1 | 300 | LED_1206_3216Metric | D16 |
| 1 | 390 | LED_1206_3216Metric | D17 |
| 1 | 430 | LED_1206_3216Metric | D18 |
| 1 | 470 | LED_1206_3216Metric | D19 |
| 1 | 510 | LED_1206_3216Metric | D20 |
| 1 | 560 | LED_1206_3216Metric | D21 |
| 1 | 3.9uH | L_1206_3216Metric | L1 |
| 3 | 470uH | L_Radial_D10.0mm_P5.00mm_Neosid_SD12_style3 | L2, L3, L4 |
| 5 | 47uF | CP_Radial_D5.0mm_P2.50mm | C1, C4, C7, C10, C30 |
| 20 | 100n | C_1206_3216Metric | C2, C6, C8, C11, C13, C16, C17, C18 +12 |
| 2 | 1.5p | C_1206_3216Metric | C3, C5 |
| 4 | 22u | C_1206_3216Metric | C9, C12, C15, C21 |
| 1 | 10n | C_1206_3216Metric | C14 |
| 1 | 10u | C_1206_3216Metric | C32 |
| 17 | 1k | R_1206_3216Metric | R1, R19, R22, R23, R24, R25, R26, R27 +9 |
| 1 | 300 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R2 |
| 5 | 33 | R_1206_3216Metric | R3, R4, R5, R29, R30 |
| 1 | 390 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R6 |
| 11 | 10k | R_1206_3216Metric | R7, R12, R13, R14, R15, R16, R17, R18 +3 |
| 2 | 22 | R_1206_3216Metric | R8, R9 |
| 2 | 220 | R_1206_3216Metric | R10, R11 |
| 1 | 430 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R31 |
| 1 | 470 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R32 |
| 1 | 510 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R33 |
| 1 | 560 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R34 |
| 1 | 470 | R_1206_3216Metric | R35 |
K9AY with wifi design files
The KiCad project lives in the ra0sms/K9AY_with_wifi repository on GitHub; these links point at the commit this page was built from.
K9AY with wifi: common questions
What microcontroller does the K9AY with wifi use?
The K9AY with wifi is built around the ESP-12F, from the ESP8266 family.
How big is the K9AY with wifi PCB?
The K9AY with wifi measures 144.2 × 108.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the K9AY with wifi?
137 components, from 58 distinct parts. The full bill of materials is listed on this page.
Where can I download the K9AY with wifi design files?
From the ra0sms/K9AY_with_wifi repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the K9AY with wifi design in my own project?
Yes, under the terms of its MIT license, which ra0sms chose for the repository.
Can I test firmware for the K9AY with wifi without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.
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