MaxESP3 - $65 Fully featured controller at a great price.
MiniESP3 - $50 ready to go to work.
ESPduino 32R/Hujer - $27-35. Temporarily unavailable.
I generally have a few other kits assembled. Inquire as to availability.
MaxESP3 - $44 Fully featured controller at a great price, moderate skill level.
MiniPCB2 - $55 Powerful 600MHz µprocessor in compact packages. Easy to assemble and program with Teensyduino. Limited to stock on hand.
STM32 - $40.00 Everything to build the BluePill, again available with the STM32F303 processor.
SHC ESP32 - $25 Features the 1.3" OLED display and external antenna.
BHC - $10 Includes PCB, Momentary switches and RJ-12.
Motor drivers not included. Inquire about about what we have on hand.
PCBs, any of the PCBs for the kits may be ordered individually. $8 shipped in the U.S. $14 elsewhere.
D1 mini with antenna - $6. I am modifying the D1 minis for the antenna as the "Pro" is now running about $7 and the modified D1 Mini seems to have a stronger signal.
HC-05 and BT adapter PCB for MiniPCB2 and STM32 - $9.