The entire solution takes up the least amount of printed circuit board area. ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters. We will be happy to resolve any issues you may have in a cordial and friendly manner.
eBay
Battery Capacity: 40mAh. The clock module is designed with OLED display, which can provide clear reading. Material: PCB. With onboard PCF8563T clock circuit, even if the power is off, clock can run normally.
eBay
Can be used as a serial port WIFI. 1 x Wifi Module. ★Car Accessories. is provided once the item is dispatched. High speed CPU frequency. ★Motorcycle Parts.
eBay
1 x 2CH WIFI Switch Module. Supports WiFi network. Transmission mode: WiFi. Wireless Standard: 2.4GHz, 802.11 b/g/n. If you do not receive our reply within 48 hours, pls. If you are satisfied with our service, pls.
eBay
Modular interface SD card、UART、SPI、I2C、PWM、I2S、ADC. USB Type-C USB. Button BOOT,REST,SMD DIP Switch. USB to TTL CH340C. Battery Input 3.7-4.2V. On-board clock 32.768KHz crystal oscillator. Hardware Specifications.
eBay
1 WiFi Module. Interface: USB. Power Consumption: less than equal 17dBm (typ.). Power Consumption: less than equal 600mA.
eBay
I can provide a large number of spare parts for old PCs.
eBay
⏩ Why choose the VDIAGTOOL VD80 BT diagnostic scanner?. Improve your diagnostics with the VDIAGTOOL VD80 BT, equipped with VDIAGTOOL VD80 BT OE Complete Diagnostic Tool. ⏩ VD80 BT features Why choose VDIAGTOOL?.
eBay