# Melodic Crimson Translation Collar ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** shubhamsable026 - **Created:** 7/17/2025 - **Last Updated:** 7/17/2025 - **Visibility:** Public ## Key Components ### U1 — [A9G](https://www.flux.ai/lcsc/a9g~tvpk.md) - Part Type: 2G/3G/4G/5G Modules - Manufacturer Part Number: A9G - JLCPCB Part Class: Extended Part - Manufacturer Name: Ai-Thinker(安信可) - Package or Case Code: GSM-SMD_A9-GSM-GPRSMODULE - LCSC Part Number: C133738 **Pins:** - ADC0 [pin 15] - ADC1 [pin 16] - EP1 [pin 55] - EP2 [pin 56] - GND [pin 29] - GND [pin 10] - GND [pin 46] - GND [pin 44] - GND [pin 27] - GPRS_RF [pin 45] - GPS_CTS [pin 48] - GPS_RF [pin 28] - GPS_RTS [pin 47] - GPS_RXD [pin 50] - GPS_TXD [pin 49] - HST_RXD [pin 38] - HST_TXD [pin 37] - I2C2_SCL [pin 1] - I2C2_SDA [pin 2] - IO25 [pin 32] - IO26 [pin 25] - IO27 [pin 26] - IO28 [pin 30] - IO29 [pin 24] - IO30 [pin 31] - LCD_CS [pin 19] - LCD_DIO [pin 21] - LCD_RST [pin 20] - LCD_SCK [pin 23] - LCD_SDO [pin 22] - MIC_N [pin 33] - MIC_P [pin 34] - PWRKEY [pin 9] - RESET [pin 18] - SD_CLK [pin 8] - SD_CMD [pin 7] - SD_D0 [pin 6] - SD_D1 [pin 5] - SD_D2 [pin 4] - SD_D3 [pin 3] - SIMD_CLK [pin 41] - SIMD_DIO [pin 39] - SIMD_RST [pin 42] - SPK_N [pin 14] - SPK_P [pin 13] - UART1_CTS [pin 52] - UART1_RTS [pin 51] - UART1_RXD [pin 53] - UART1_TXD [pin 54] - USB_N [pin 35] - USB_P [pin 36] - VBAT [pin 12] - VBAT [pin 11] - VBUS [pin 17] - VIO [pin 43] - VSIMD [pin 40] ### U2 — [ESP-12F fZ1a](https://www.flux.ai/f-franzin/esp-12f-fz1a~bo.md) - Frequency: 80/160MHz - Manufacturer Name: Ai-Thinker - Manufacturer Part Number: ESP-12F - Part Type: Microcontroller - Operating Voltage: 3.3V - Package or Case Code: smd22 - Current: 80mA **Pins:** - ADC [pin 2] - CS0 [pin 9] - EN [pin 3] - GND [pin 15] - GPIO0 [pin 18] - GPIO12 [pin 6] - GPIO13 [pin 7] - GPIO14 [pin 5] - GPIO15 [pin 16] - GPIO16 [pin 4] - GPIO2 [pin 17] - GPIO4 [pin 19] - GPIO5 [pin 20] - IO10 [pin 12] - IO9 [pin 11] - MISO [pin 10] - MOSI [pin 13] - RST [pin 1] - RXD [pin 21] - SCLK [pin 14] - TXD [pin 22] - VCC [pin 8] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/shubhamsable026/melodic-crimson-translation-collar~rj](https://www.flux.ai/shubhamsable026/melodic-crimson-translation-collar~rj).* --- *Generated from [https://www.flux.ai/shubhamsable026/melodic-crimson-translation-collar~rj](https://www.flux.ai/shubhamsable026/melodic-crimson-translation-collar~rj)*