I2C with external pull up resistors. UART with software receive buffer. I also often want to interface an embedded module with a PC. If the module doesn't specifically have a WIFI connection which is often the case then you generally have to buy an overpriced converter that will do a single job such as just SPI or just I2C.
eBay
QOZ UHD Dash Cam WIFI GPS Mini CAR DVR Front 4K And Rear 1080P Dual Lens Black Box Room Camera Night Vision 24H Parking Monitor
Aliexpress UK
SERVO F24 PRO. ✦ Model : F24 PRO. ✦ Battery : 2500mAh. ✦ 2500mAh large capacity battery. ✦ OS: Android 8.1 Version. ✦ Android 8.1 Pure System. 4G LTE/B1/B3/B5/B8/B40/B41. ✦ Supports 4G networks, providing stable network connectivity.
eBay
Introducing the award-winning NextBase 622GW 4K Dash Cam. With Image Stabilisation, what3words and stunning 4K image quality. Get yours today!
nextbase.co.uk
Item contains:One item.
eBay
4G GPS Car DVR Dual Dash Cam 720P Front Rear Camera Night Vision With Phone APP Remote Monitoring WiFi Hotspot Parking Monitor
Aliexpress UK
Mode: P60 PRO. SIM Card Quantity : 2 SIM Card. WIFI : YES. Operation System : Android. 3.5mm Headphone Port : No. WIFI: Support WIFI direct connection ,support WIFI hotspot. 1x Type-C Cable. Phone weight: 66g.
eBay
AZDOME PG17 Pro Dash Cam 4K+2.5K Front and Rear Mirror Camera with HDR STARVIS 2 Rear View Mirror Cam 5G WIFI GPS Voice Control
Aliexpress UK
Item NO.: V168. 1 x V168 PRO RC Quadcopter. FPV: 5G WiFi. FPV Distance: 800m. Quad's Size: 180 x 125 x 70mm (Foldable), 360 x 340 x 70mm (Unfoldable). - With brushless motor high speed power output. Strong wind resistance, more stable flight.
eBay
With Emergency SOS Response, Alexa Voice Control & 1440p HD recording, the 522GW dash cam is a must have for those looking to protect themselves on the road.
nextbase.co.uk
4 Piece servos. We'd like to settle any problem in a friendly manner. Structural design can make the ic arm move flexibly, so it can grab objects in any direction.joint of arm is bearings, which can make the arm the smallest friction.
eBay
WiFi 7 QCNCM865 WI-FI 7 BT Combo module Bluetooth 5.4 Up to 5.8 Gbps with 4K QAM,Wi-Fi 7, Wi-Fi 6E, Wi-Fi 6 802.11ax
Aliexpress UK
SOYES S24 Mini Pocket Smartphone – Android 10, Dual SIM, 3.0" HD, 2000mAh, 4G. Compact and powerful, the SOYES S24 Mini is a 3.0” Android smartphone with dual SIM support. Perfect for minimalists or as a backup phone.
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Ewelink Smart Switch Wifi RFBL R3 Pro 85-265V 4CH Wifi Relay Switch Wifi Garage Door Wifi Curtain Module Wireless Switch
Aliexpress UK
Key Features Multicolor 3D Printing: 4 × CFS for up to 16 colors Active Chamber Heating: Tackle performance filaments like ABS and PPA-CF Dual AI Cameras: Auto adjust flow rate and alert you to failures Smart Auto Leveling: Faster leveling of only the target print area Pro-Level 300 mm Volume: Producing larger or more models in one print * K2 Pro Combo includes K2 Pro and one CFS unit.
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BW16 KIT with Wifi Kill Support 4.2G and 5G RTL8720DN NodeMCU Serial port to wifi wireless WIFI module BW16 bluetooth module
Aliexpress UK