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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)
# s$ H. N; O) Q- l; i% k- #include <ESP8266HTTPClient.h>: _. Q7 T- W2 I
- #include <ESP8266WiFi.h>
" b0 X! ]9 K, } - #include <ESP8266WiFiMulti.h>
0 Z$ ~/ _4 v' r/ @ - #include <ESP8266WebServer.h>
0 H7 j" S" D& I3 F9 B3 ~ - #include <arduino.h>; i- x, N9 _6 W1 f1 A! j
- ESP8266WiFiMulti WiFiMulti;
3 u/ s! B. }* O6 a - ESP8266WebServer server(80);
* I& h5 i7 U# {8 b+ z& t - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% l2 s5 N* T, t$ e9 M7 h8 F3 { - ADC_MODE(ADC_VCC);
& k, w2 c& ^4 N. S2 N' J# e5 _ T - void setup() {
+ y; a/ z0 j: W- b1 z - Serial.begin(115200);
5 b0 |$ M" o" j - Serial.print("\r\n\n");
, k( [$ P) ~ B - pinMode(2,OUTPUT);; t# Z3 ^2 E: {* Z6 g
- // WIFI& _+ n+ w! a4 a) ?0 l j
- WiFi.mode(WIFI_STA);0 d. ^' ^. P9 I A( V
- WiFi.hostname("Sparkle");) u1 M0 W0 K0 @; z
- WiFiMulti.addAP("wifi ssid", "wifi password");. J' n/ d; F H' ^
- int tryNum = 15;
1 ~; l* w9 `! i - Serial.print("Connect WiFi");
" R' J* M+ Y' G" Z' |8 ~8 _ - while (WiFiMulti.run() != WL_CONNECTED) {
6 t4 I: d# _& }" w& I$ A - digitalWrite(2,0);
* P% @4 x' V2 `) k; P. H - delay(200);
+ t. V% U! J4 a - digitalWrite(2,1);
/ R }0 L x* N: t6 [6 M# z, s" h - delay(300);5 ~2 `& I2 u- v8 ?" }# n2 M6 S+ ^
- Serial.print(".");
3 ]& [3 a$ y S: [9 d7 \( z - tryNum--;9 y- g% }% i; t I6 f) O" n( A
- if (tryNum == 0) {( W/ I7 ~* n" X' }* P6 T
- // 1min8 O" O$ g Z+ w
- // ESP.deepSleep(60e6);
- R2 P4 j$ N) ]1 n7 R0 l - ESP.deepSleep(0);
/ J/ F! c6 r+ g+ j0 D$ b& S - }
; l8 W' U6 c9 i6 V - }) x3 R% [; w6 W% Q8 h
- Serial.print("\r\n");6 Y/ p" s! k1 v M2 ~. V
- digitalWrite(2,1);: k0 J6 j3 R C: C' ]
- Serial.print("IP address : ");( v2 X, w6 n h2 p8 `6 D
- Serial.println(WiFi.localIP());
' C7 b$ i) G8 C! J/ J: G - server.on("/", HTTP_GET, [](){
# p9 O% f/ C' O8 n/ v! L - server.sendHeader("Connection", "close");' O) V) \. p# e1 q8 a; _- c5 Q5 B
- server.send(200, "text/html", serverIndex);
6 z5 N |* g0 \+ ]/ u/ N - });( y% T8 R g' G1 \2 Q& U, B0 d
- server.on("/update", HTTP_POST, [](){
d$ b9 h( X1 O3 h - server.sendHeader("Connection", "close");
1 n6 ^$ x) U. U& y8 {8 |3 m, E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# A& t2 i1 j2 S9 k - ESP.restart();6 Q' L( {2 y, q4 c
- },[](){
- s8 } c) V! N5 |* v& |" ~ - HTTPUpload& upload = server.upload();3 k- M9 F& c6 S4 P" V
- if(upload.status == UPLOAD_FILE_START){, Z8 |4 V7 W% S/ r0 K! q0 j% ~) g
- Serial.setDebugOutput(true);
# t; f2 s) |/ x% X. L - Serial.printf("Update: %s\n", upload.filename.c_str());
5 W S' j3 i ~: g* x7 Q' ] S - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 y8 |% I' G1 G4 t! q- r+ s" m - if(!Update.begin(maxSketchSpace)){5 ~. u+ x, Q: Z8 o) v
- Update.printError(Serial);
# K0 C7 P, ?+ t# d2 ~; n - }2 o+ w2 p X0 m5 w& ~. }, O
- } else if(upload.status == UPLOAD_FILE_WRITE){6 B- F( G! B- q7 A: y& c
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, i* ?& d. [2 l5 H
- Update.printError(Serial);
0 u* |) Y+ ? b' M6 G - }
6 F! \& S( e+ l- D - } else if(upload.status == UPLOAD_FILE_END){( f' c( R% M- C9 J1 z& x) g5 N
- if(Update.end(true)){
! d3 J7 W6 d$ ^8 S* D8 w: ? - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" I3 I& F% Y" I. K
- } else {
' L3 d) i: k! R: a: j6 Y - Update.printError(Serial);0 q4 k: Q. H3 i0 l# A
- }
0 p& R# `9 J t# G - Serial.setDebugOutput(false);
2 I- t7 T1 x/ @0 k - }+ n# b& b" l* w' ?+ ]. l5 w
- yield();
& j, }1 w% ~! { - });
F4 [ U5 d* g- N* r -
& S2 @: [' \1 H- G2 L# R8 O - digitalWrite(2,0);
+ \+ d! K& `$ m4 K# {7 a - mainAction();; P. H- s; D# W9 b$ `
- if (digitalRead(0)){
! ^8 m2 J: B( \ - ESP.deepSleep(0);& f: f, q0 q8 X: e3 s, ^
- } else {, I7 J h1 v# p$ O! ^: c
- server.begin();# y. ?; w# l& V! s6 y" t
- }$ x' }, l; p( e l2 D+ j+ ]
- }( S1 e& ^9 D+ A! R2 @
- void loop() {
) V# g/ ~0 X) w6 W3 A# `1 u - server.handleClient();
] P; w( f* t! x, y3 ~; [1 r - delay(1);% D' K3 ] j9 g% ~, E
- }
7 m7 J4 L+ h# O: r - String doGet(String url){' U6 }% f5 i5 E8 [* U! K$ |; I
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, w- m r0 [; q - HTTPClient http;
! F. t2 [" U1 [9 M - Serial.println("[HTTP] begin...");
( H5 @6 g# y0 h6 e& ^1 @ - if (url.startsWith("https")) {
& o: X( ]4 A$ B. K G - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 X& C% g8 l; b8 M0 |
- } else {
6 f' m n( f2 q# D& i7 K/ b$ u p - http.begin(url);
! I3 s" ]$ b- R8 g- a* S - }
0 u; x' X( y6 A* ~+ H8 S$ i - Serial.println("[HTTP] GET...");
- o6 @, n3 v: M* M. Q1 s; i4 U - int httpCode = http.GET();/ J" x' o5 z5 Y4 E! F" j$ i6 f8 z
- if (httpCode > 0) {! J1 ?! a( G" V7 u) M
- Serial.printf("[HTTP] code: %d\n", httpCode);1 \4 W" \6 v; R' x/ v3 m
- if (httpCode == HTTP_CODE_OK) {
# o5 Q5 Q( o5 V - String payload = http.getString();
2 M1 Z8 x2 C9 ? - Serial.println(payload);
& p* I; T/ z7 }( E8 T9 i* w n - Serial.print("\r\n");
" C! v& k* i8 Q; ~ - return payload;
7 `; C8 @8 c" j1 M- f - }: }5 j( U/ c) F5 s0 T; ]
- } else {
# z6 E! u9 B& M/ g8 a - Serial.printf("[HTTP] GET... failed, error: %s\n",. y" Q& M, E b3 U w7 s- U5 E
- http.errorToString(httpCode).c_str());# `$ c$ m! G, G% R/ t; f5 o8 X
- }
0 w& O! O: Y- d9 o% M, d - http.end();
% w' L! a* S3 [2 P% U - return "";0 q* \$ O" V) i* M; ?
- }7 A. E/ _! v8 x4 b+ u% }$ H
- }
& ` O, d" J; Y7 L/ D$ o7 v8 Z* M- {( N - void mainAction() {
% M3 ^ x% q9 F3 G+ d2 l3 [7 S - // 发送请求( z' Y$ n6 `; ?( n
- doGet("http://google.cn");1 _3 K; P/ O6 b
- }/ }+ [* w" Z4 L% E1 [
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