What are the 20 pin microcontrollers with AD converter periphery without crystal oscillator

Recommended models: STM8S103F2, STM8S103F3, STM8S903F3STM8L101F2, STM8L101F33, PIC Recommended Models: PIC16F677, PIC16F687, PIC16F785, PIC16F747 for your reference, answered by the MCU practice group Supplement:

I didn't pay attention to it, the PIC that doesn't need crystal oscillator externally is not good, but his **advantage, plus the cost of the **circuit, is basically the same.

Look at Hongjing's single-chip microcomputer seems to have I don't remember very clearly.

The MSP430 has low power consumption and can be battery-powered. MSP430F149, all the routines on the Internet are talked about.

You can use the pic, between 2-3 chips, such as 12F675, 8 pins, with 4 10-bit AD,, as for the display, use 74HC595, it's OK, 3 wires are OK, I've done voltage, ammeter, just use PIC,

During the growth process of bamboo, the leaves often turn yellow, which is mostly caused by the imbalance of cultivation management. Too much water, too little sunlight, too much or too little fertilizer will cause yellowing of leaves, but the yellowing situation is different, and the causes should be carefully observed and analyzed, and corrected.

If it is the cause of fertilization, the yellowing of flowers caused by excessive fertilization or excessive concentration is manifested in the dry brown appearance at the top of the new leaves, and the general leaf surface is thick and dull, and the concave and convex are not stretched, and the old leaves are scorched and yellow. Fertilization should be stopped immediately, and part of the fertilizer should be washed with plenty of washing in severe cases.

1.Bamboo is a relatively old plant, there are many varieties, only from the growth form, mainly divided into clumping bamboo and scattered bamboo.

2.As a family ornamental breeding, it is better to mainly use varieties with peculiar stalks and beautiful branches and leaves.

"Wenzhu leaves are yellow" homemade flower fertilizer, save your love bamboo, so that the leaves are no longer yellow.

If you go to the official website of the Xinjiang Public Security Traffic Police and enter the license plate number and vehicle identification code, all the violation information of your car will be displayed.

It may be a PIC microcontroller.

What are the peripheral devices, draw a diagram.

Paste a **, much more vivid than you described.