telagod/moskill2MosKill - Smart Mosquito Swatter with BLE, Kill Counting & Statistics | ESP32-C3 + KiCad PCB + UniApp
Moskill is an open-source printed circuit board by telagod, from the telagod/moskill repository on GitHub. It is a 2-layer board of 30 × 100 mm with 95 parts on 63 nets, routed with 810 tracks and 85 vias.
It is built around the ESP32-C3-LYRA, AHT20 and DW01A, with the ME6211C33R5G, NE555 and TP4056 among its other parts. Its parts include 36 resistors, 24 capacitors, 13 diodes, 8 ICs and 5 transistors. It belongs with the radio and wireless boards and the ESP32 and RISC-V boards of this library.
Smart Mosquito Swatter with BLE, Kill Counting & Statistics
ESP32-C3 Firmware + KiCad PCB + UniApp Cross-Platform Client
30 x 100 mm narrow strip designed to fit inside a mosquito swatter handle. 91 components, dual-layer with full GND pour.
Left to right: 3D Top, 3D Bottom, Flat Top, Flat Bottom
| Component | Part | Function |
|---|---|---|
| MCU | ESP32-C3-MINI-1 | RISC-V 160MHz, BLE 5.0, 4MB Flash |
| HV Boost | NE555 + AO3400 + EE13 Transformer (10:200) | 3.7V -> ~2000V DC |
| HV Multiplier | 3-stage Cockcroft-Walton (UF4007 + 1nF/2kV) | Voltage tripler |
| Current Sense | 0.1ohm + LMV358 (Gain=20) + BAT43 Peak Det | Kill waveform capture |
| Env Sensor | AHT20 (I2C) | Temp +/-0.3C / Humidity +/-2%RH |
| Power | 18650 + TP4056 + ME6211 LDO | USB-C charging, 3.3V regulated |
| Battery Protect | DW01A + FS8205A | Over-charge/discharge/current protection |
| LED | WS2812B | RGB status + kill effects |
| Buzzer | KCG0601 Passive Piezo | Kill sound FX + streak rising tone |
Full schematic:
hardware/kicad/moskill.kicad_sch| BOM:hardware/bom/BOM.csv| Gerber:hardware/kicad/moskill-gerbers.zip
moskill/
├── firmware/ # ESP-IDF v5.4 firmware (938KB binary)
│ ├── main/ # Entry point, 6 FreeRTOS tasks
│ └── components/
│ ├── kill_detector/ # 4-state kill detection FSM
│ ├── stats_engine/ # Statistics + NVS sharded storage
│ ├── ble_service/ # BLE GATT server + OTA handler
│ ├── env_sensor/ # AHT20 I2C driver (thread-safe)
│ ├── power_mgmt/ # Battery curve, HV control, deep sleep
│ └── hv_driver/ # WS2812B RMT driver
├── hardware/
│ ├── kicad/ # KiCad 9 schematic + PCB (30x100mm)
│ ├── bom/BOM.csv # 48 line items, ~¥24.48
│ └── renders/ # 3D and flat PCB renders
├── app/ # UniApp cross-platform client
│ └── src/
│ ├── pages/ # 7 pages (dashboard, stats, rank, control, ota, ...)
│ ├── components/MkIcon.vue # SVG icon component (38 icons)
│ ├── utils/
│ │ ├── ble.js # BLE communication layer (128-bit UUIDs)
│ │ ├── icons.js # SVG icon definitions
│ │ ├── i18n.js # Chinese/English auto-switch
│ │ └── mock.js # Dev mode mock data generator
│ └── store/index.js # Vuex state management# Install ESP-IDF v5.4+
# https://docs.espressif.com/projects/esp-idf/en/latest/esp32c3/get-started/
cd firmware
idf.py set-target esp32c3
idf.py build # -> build/moskill.bin (938KB)
idf.py -p /dev/ttyUSB0 flash monitorcd app
npm install
npx uni build # H5 build
npx uni build -p mp-weixin # WeChat Mini Program
npx uni dev:h5 # H5 dev server
# Dev mode: no device needed, uses mock data for UI developmentADC 1kHz sampling -> Threshold trigger -> Sustain check (>=5ms)
-> Peak capture -> Envelope match -> Classification -> Stats update
-> BLE notify -> LED + Buzzer feedback
Classification by peak ADC:
S (< 800) Fruit Fly
M (800-2000) Mosquito
L (2000-3200) House Fly
XL (> 3200) Moth / Beetle128-bit custom UUIDs (base e3a1XXXX-f5e8-4c8a-9b3d-2c1f7b8a6d50), packed wire format for efficiency.
| Service | UUID Short | Description |
|---|---|---|
| MosKill Main | 0x1B00 | Kill count (notify), session/lifetime stats, kill log, environment |
| Config | 0x1B11 | Sensitivity, LED, buzzer, streak effects + time sync |
| OTA | 0x1B21 | Firmware update (start/write/verify/abort with CRC32) |
| Battery | 0x180F | Standard Battery Service |
Full protocol spec:
protocol/ble_protocol.md
cd tools/ble_debug
pip install -r requirements.txt
python moskill_ble.py scan # Scan devices
python moskill_ble.py stats <ADDR> # Read statistics
python moskill_ble.py monitor <ADDR> # Real-time kill monitor
python moskill_ble.py config <ADDR> -s 2 -b 3 # Set sensitivity/buzzer
python moskill_ble.py ota <ADDR> firmware.bin # BLE OTA updateMIT
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 1M | R_0805_2012Metric | R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 |
| 8 | 10K | R_0402_1005Metric | R2, R3, R13, R15, R26, R30, R31, R34 |
| 7 | 100nF | C_0402_1005Metric | C8, C9, C11, C14, C18, C19, C20 |
| 6 | 1nF/2kV | C_0805_2012Metric | C1, C2, C3, C4, C5, C6 |
| 6 | UF4007 | D_SMA | D1, D2, D3, D4, D5, D6 |
| 4 | 100R | R_0402_1005Metric | R10, R11, R29, R36 |
| 4 | 10uF | C_0805_2012Metric | C7, C10, C16, C17 |
| 3 | 10nF | C_0402_1005Metric | C21, C22, C23 |
| 3 | 1K | R_0402_1005Metric | R7, R9, R35 |
| 3 | 2N7002 | SOT-23 | Q3, Q4, Q5 |
| 3 | 4.7K | R_0402_1005Metric | R14, R27, R28 |
| 3 | Fiducial | Fiducial_1mm_Mask2mm | FID1, FID2, FID3 |
| 2 | 100K | R_0402_1005Metric | R6, R12 |
| 2 | 5.1K | R_0402_1005Metric | R32, R33 |
| 2 | M2 | MountingHole_2.2mm_M2_Pad | H1, H2 |
| 1 | 0R1_2W | R_2512_6332Metric | R1 |
| 1 | 1.5K | R_0402_1005Metric | R5 |
| 1 | 100pF | C_0402_1005Metric | C24 |
| 1 | 19K | R_0402_1005Metric | R8 |
| 1 | 1nF | C_0402_1005Metric | C15 |
| 1 | 1uF | C_0402_1005Metric | C13 |
| 1 | 2K | R_0402_1005Metric | R4 |
| 1 | 4.7uF | C_0805_2012Metric | C12 |
| 1 | AHT20 | Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | U2 |
| 1 | AO3400A | SOT-23 | Q1 |
| 1 | BAT43 | D_SOD-323 | D8 |
| 1 | BAT54S | SOT-23 | D7 |
| 1 | BZX84C3V3 | SOT-23 | D9 |
| 1 | Button | SW_SPST_PTS645 | SW1 |
| 1 | Buzzer | MagneticBuzzer_Kingstate_KCG0601 | BZ1 |
| 1 | DW01A | SOT-23-6 | U5 |
| 1 | EE13 1:20 | L_Bourns_SRR1208_12.7x12.7mm | T1 |
| 1 | ESP32-C3-L | ESP32-C3-MINI-1 | U1A |
| 1 | FS8205A | TSSOP-8_4.4x3mm_P0.65mm | Q2 |
| 1 | LED_STDBY | LED_0402_1005Metric | D13 |
| 1 | LMV321/LMV358 | SOT-23-5 | U6 |
| 1 | ME6211C33 | SOT-23-5 | U3 |
| 1 | NE555 | SOIC-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | SMBJ24A | D_SMB | D10 |
| 1 | SS34 | D_SMA | D11 |
| 1 | TP4056 | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | USB-C | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J1 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U8 |
| 1 | WS2812B | LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D12 |
It measures 30 × 100 mm and has 2 copper layers, 1.6 mm thick.
95 parts, built around the ESP32-C3-LYRA, AHT20, DW01A and ME6211C33R5G. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the telagod/moskill repository on GitHub, at the commit this page was made from: the board is hardware/kicad/moskill.kicad_pcb and its schematic hardware/kicad/moskill.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask telagod before reusing the design.
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