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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
4 y+ D7 e! z( ?9 _1 v _- #include <ESP8266HTTPClient.h>
' z/ i/ i0 B9 d5 W8 H: V- N. S2 e - #include <ESP8266WiFi.h>5 K7 ]! ]1 G/ J8 h* Z/ A9 K6 O
- #include <ESP8266WiFiMulti.h>
8 n* t, |9 @. U H - #include <ESP8266WebServer.h>
. i* X1 h$ T/ D: ~. Z! {& q - #include <arduino.h>. h0 W0 e& d) k! [8 q# D) a7 M
- ESP8266WiFiMulti WiFiMulti;
L# L! I; l$ {/ C* e5 n( z4 s - ESP8266WebServer server(80);
2 E! z- z# b3 i' i# C0 x4 ? - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 K9 Z9 Z$ p. Y# R9 a. P4 B - ADC_MODE(ADC_VCC);
. i9 r- a7 b3 W& e V - void setup() {4 _; N% ?1 S; e7 C2 y
- Serial.begin(115200);
4 @( d& {" e* P - Serial.print("\r\n\n");! R7 {+ L* I4 t% b Y; B
- pinMode(2,OUTPUT);
: w4 y1 A P+ {7 B7 q: N - // WIFI5 Q" U( f% o9 M# p
- WiFi.mode(WIFI_STA);0 c7 x! n, W' A/ }( W8 L$ Q
- WiFi.hostname("Sparkle");
2 S/ s5 B& c( j - WiFiMulti.addAP("wifi ssid", "wifi password");! U7 q" M1 S, o, u
- int tryNum = 15;/ v' M1 g( `+ V* B. x/ Q6 b4 ]/ ^
- Serial.print("Connect WiFi");
3 n1 N$ c9 z. c. P; {2 C# G - while (WiFiMulti.run() != WL_CONNECTED) {' ]0 a2 Y& D8 D C: Q; d! W
- digitalWrite(2,0);
% b5 K, y' t% t$ b/ D - delay(200);4 C: E6 d# o6 |3 O* d5 [ b( X5 Y
- digitalWrite(2,1);1 z$ y6 @1 A" E) J7 n( R' v
- delay(300);
" u+ M1 z! W6 W1 g1 T - Serial.print(".");
7 s5 r9 r* O8 W, K7 N2 }2 C# \/ v - tryNum--;3 Z" p! Q7 s; o1 N' r$ ?# Q1 a
- if (tryNum == 0) {, u- a7 F8 s8 m! u# s
- // 1min
& R% c. Z" a \5 F - // ESP.deepSleep(60e6);
0 s- W3 H! p2 H/ \. ~ - ESP.deepSleep(0);
% G2 i o& z, u5 z0 c( U - }$ J4 n# W3 C( \# H7 m
- }, \ B9 C0 e" m. |
- Serial.print("\r\n");8 ?. H, ~. X4 s& F' r
- digitalWrite(2,1);, j w2 H! i3 H* @) o a
- Serial.print("IP address : ");% a E- r% A A" q0 n
- Serial.println(WiFi.localIP());9 D" S y0 {0 L6 g: k
- server.on("/", HTTP_GET, [](){
4 h/ c6 |) U! {/ i3 s- f# k. E - server.sendHeader("Connection", "close");5 _* P, x) \* r( p2 U: e2 Z
- server.send(200, "text/html", serverIndex);* @7 }7 j7 k8 e3 S' @" T
- });
0 X4 ]' X5 {8 U9 L6 g, d - server.on("/update", HTTP_POST, [](){1 W# K5 S& y2 N. }" N$ w
- server.sendHeader("Connection", "close");/ R; W1 u; b X" U i0 c2 G4 G8 P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, H) F. n' A: B6 A0 [, ~+ [. Y - ESP.restart();% Q. I( Q, z! r( N3 w' s8 V
- },[](){
" J7 T- }+ Y$ p - HTTPUpload& upload = server.upload();
; M4 B$ ?" a0 ~7 l9 x - if(upload.status == UPLOAD_FILE_START){! I- X$ i$ I. `
- Serial.setDebugOutput(true);' ~: f2 u) ~- H% m
- Serial.printf("Update: %s\n", upload.filename.c_str());
) @2 R+ g O- J. F - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- r9 l1 W( M d3 I
- if(!Update.begin(maxSketchSpace)){
% ~0 ~ b$ N1 V, H8 T3 i) B - Update.printError(Serial); V5 |1 Y$ s- C
- }7 k* ]9 s$ h6 e& G# a2 E8 a9 ~
- } else if(upload.status == UPLOAD_FILE_WRITE){
2 ^8 w8 s- A! |0 f$ Z& l5 t& x - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 a7 c4 V% V; G6 q7 b
- Update.printError(Serial);) R! q: h5 z8 {# Y# h! s; K
- }- m7 J8 y: ]* H( B9 h
- } else if(upload.status == UPLOAD_FILE_END){5 e5 A' \/ y1 |) T! j% S/ l. n
- if(Update.end(true)){
; m" j, R' c( ^* z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 K* C$ d7 r* g8 J; W
- } else {2 p: k! R! s7 q& p* K2 k W5 O
- Update.printError(Serial);$ N7 P w- Q$ T* R: }2 O/ P
- }
/ M9 c7 X+ D0 R$ Z9 I+ Q4 W- K - Serial.setDebugOutput(false);6 p4 Z* h; R" Q" y ^5 R8 U/ g8 R
- }- f- [" ~0 U0 j& o( g7 D# m: f8 [
- yield();
* @9 i1 `9 H9 V" m - });
# W3 e g, a: s( w t - 8 w/ ~8 V9 X: x( d9 [7 H/ H* ]1 ^
- digitalWrite(2,0);5 G1 ` a! u$ k* j8 T0 o
- mainAction();
0 r4 E! K* [+ s* y3 T - if (digitalRead(0)){
3 g# Z0 G% g4 t, n - ESP.deepSleep(0);
" X6 j8 y! G( r6 Y - } else {) ^2 A; Q- j# X( b
- server.begin();5 v% N# K" C* R& F0 Y, C
- }5 A7 {% R' q* i; Q
- }# V. R0 C" G+ X- i; L: x3 ^
- void loop() {
! b! s% j( D2 b7 I - server.handleClient();# \( V; `; k- ?7 e$ ~/ J
- delay(1);
$ o4 S8 J; t- ?+ L! B) [ - }! {# S3 V: R2 j8 d
- String doGet(String url){
5 Z( n3 y+ g6 w9 K1 y4 `) d# I - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 ]1 c7 n- p g - HTTPClient http;
2 \: \4 s6 {3 Q& p X @4 U# v0 i - Serial.println("[HTTP] begin...");* V# u% s9 h/ S2 U2 t) q; m
- if (url.startsWith("https")) {. \" H5 @% d. a, {. p! B
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 M4 b b' H# C- z5 s0 |2 z - } else {
+ y W( @% d$ s: @1 S - http.begin(url);# m9 }, q* N* ~
- } w( R4 o( b/ l4 _
- Serial.println("[HTTP] GET...");
0 u) y/ u' O! q0 b - int httpCode = http.GET();7 v( A% h5 G. O' _0 n
- if (httpCode > 0) {/ g5 i, {# D' [5 ^
- Serial.printf("[HTTP] code: %d\n", httpCode);
& x, H9 L j/ g _: h. { - if (httpCode == HTTP_CODE_OK) {8 r8 m9 K# e/ ~8 Z1 c0 y
- String payload = http.getString();5 `6 s7 L+ Z9 f+ u* K
- Serial.println(payload);
3 G* s& Y9 A; E% U) H - Serial.print("\r\n");# v4 j- f) C, u8 e
- return payload;' x1 T/ T' z5 ^
- }
4 m- W4 m; O5 H) A; B - } else {
5 h b' E ^; e* i8 R' ~ - Serial.printf("[HTTP] GET... failed, error: %s\n",, F0 c, m6 U* H" u
- http.errorToString(httpCode).c_str());3 F% j5 r0 j+ S- i1 a- U# D
- }
" s& h" w5 b R; B, [ - http.end();
5 H/ y; b* l6 J" B+ j( B" r - return "";
/ _7 Q+ P- G5 N" r* Z% A - }5 N& M) P0 n& T5 G$ o
- }3 m7 c4 d& X; v! o0 `3 E
- void mainAction() {
6 L& H' D- a% k. b. f1 ~1 ~ - // 发送请求
3 d, ?8 c8 y3 E' c$ z* ^: N% | - doGet("http://google.cn");
6 }3 e( s8 E& t$ f( W - }
4 Q8 M! E5 C6 f5 I8 E
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