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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)
V- ^' v9 j" ~! x, \! H" w& `- #include <ESP8266HTTPClient.h>8 u' d/ A4 E$ W! o. C
- #include <ESP8266WiFi.h>
, | u7 U3 n- C% Q' o - #include <ESP8266WiFiMulti.h>
2 B- G8 ^, v; N+ j. V/ z- q - #include <ESP8266WebServer.h>
- T( k7 H9 P& p - #include <arduino.h>. x, \% G/ s% L
- ESP8266WiFiMulti WiFiMulti;
8 x' B* M0 J( e" H - ESP8266WebServer server(80);
( l5 S5 u7 N! e2 x0 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) z3 i* q% h9 k. V* W8 u& B, a - ADC_MODE(ADC_VCC);( m* `- a" b5 [4 z9 l: F
- void setup() {
; ?0 W0 ]* O3 k' N - Serial.begin(115200);6 M2 ?. _1 c* M
- Serial.print("\r\n\n");* f6 A6 l+ C5 q% ^0 M- A, P
- pinMode(2,OUTPUT);
* W: A3 g( U$ u3 q9 T - // WIFI& [: e7 ^) a+ O9 \" n0 R6 k- e9 ~# H
- WiFi.mode(WIFI_STA);% i& x* W) f/ G( ]7 p! M- I
- WiFi.hostname("Sparkle");7 K/ @% U6 M( x( K! s* j; _, ~
- WiFiMulti.addAP("wifi ssid", "wifi password");
# k1 n' w+ o5 r8 A* s* p$ l - int tryNum = 15;4 X' T. Z. Z0 l
- Serial.print("Connect WiFi");) q, p; ] O, _
- while (WiFiMulti.run() != WL_CONNECTED) {
( b& @0 s( V. J% h- a2 e$ O - digitalWrite(2,0);
' u: R! x. p" ~$ \$ X7 e% Y# R - delay(200);
. l) P# u: T2 h# A$ u9 G - digitalWrite(2,1);# h2 T9 U6 j, B
- delay(300);
3 L/ V" O3 b9 X% O' d - Serial.print(".");
4 `* j* I: o0 P: ? - tryNum--;
2 X# g" T; l# X4 m6 \$ y3 k - if (tryNum == 0) {
# b* l2 t4 G( L8 a h8 b, ^7 I - // 1min
2 Q& z$ o7 K" C, w& F: M9 ~ - // ESP.deepSleep(60e6);1 U) E6 v1 p9 W, B
- ESP.deepSleep(0);( d2 Q+ O. n! C- u! k5 M; P- O' x! J1 r
- }! m4 [- f+ X. S1 V8 f9 ]/ L V
- }
0 o& G; B$ n6 _7 q8 L5 U ` - Serial.print("\r\n");
% ^. d" b4 K: M/ M - digitalWrite(2,1);
$ F- r& S) A# n - Serial.print("IP address : ");7 Q1 |) K% Z. r; D6 Q7 ]6 z" P
- Serial.println(WiFi.localIP());: a+ n5 y" w9 T" w! {; u
- server.on("/", HTTP_GET, [](){8 J" ~4 r! m+ B' i4 c
- server.sendHeader("Connection", "close");
! I; v7 p/ b4 A* _& @# A - server.send(200, "text/html", serverIndex);
# Z9 s% ?) }- C: d5 @( e+ h0 L - });( q8 }6 @/ Y0 f8 J- V6 i
- server.on("/update", HTTP_POST, [](){
$ Q1 ^3 N0 X; n4 X% w - server.sendHeader("Connection", "close");; L4 H& ]: V: U! _" X4 S8 Y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" \0 d; h- p. A9 l9 `' f8 n - ESP.restart();
& s w. M) w. P, j% _9 H4 [7 g4 c9 G - },[](){
. w# ~6 y2 X3 Y/ j/ S - HTTPUpload& upload = server.upload();
& F- l+ P' m: i3 h9 O- H - if(upload.status == UPLOAD_FILE_START){* E9 ~: s1 W8 v
- Serial.setDebugOutput(true);6 N' c' s: f- C% `" A3 N
- Serial.printf("Update: %s\n", upload.filename.c_str());. K. ^2 g6 R0 s) W$ @9 N0 g; L4 e
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 o4 z9 D3 }2 g* M+ ?! ~
- if(!Update.begin(maxSketchSpace)){1 S6 J5 ] O! K+ R) J5 [
- Update.printError(Serial);6 o, t0 d. F& r2 v
- }
8 P- N4 l6 c7 x# O$ _ - } else if(upload.status == UPLOAD_FILE_WRITE){3 _3 t6 Y# i5 N |) Y- X
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% E3 ?! t4 y4 ~! j( E - Update.printError(Serial);
/ d8 d* _$ r+ d8 k! ? - }
+ |) u4 X3 D/ m. n0 o T( D - } else if(upload.status == UPLOAD_FILE_END){7 c% \3 }5 ~! m# J
- if(Update.end(true)){
$ i: A$ n6 G" o' w) r7 R - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 c- h' i3 ?1 `. Z$ O
- } else {9 O+ E" d& Z, ?) @3 R; v/ c- N8 N% D) S
- Update.printError(Serial);( X5 v& O4 T$ y# }2 I/ ~2 j5 Y
- }
# y/ G2 D. y8 ]5 ]& a4 }& O - Serial.setDebugOutput(false);
, I0 R4 Y, m( r! M$ u; y, A* x - }1 N& v' U1 \' d
- yield();) t4 G+ y& p J* O, c- M0 r
- });
) C7 M8 \4 ?" g* t2 R( J - 9 s9 a! x# X4 J0 j3 ^
- digitalWrite(2,0);
6 _4 H; }+ Q4 H- e4 y ] - mainAction();
4 \' k. j" K; ~3 ~7 l- T+ O - if (digitalRead(0)){
& l4 g9 g1 U' y* ^ - ESP.deepSleep(0);8 ` t5 r' T, q* S
- } else {3 Y. x3 W% t8 o& h$ Z; \5 w
- server.begin();5 r7 i. Q9 w! H2 \
- }* p; N" s6 s0 d2 U6 q! T0 o
- }
O: x; J6 J: Q/ d% S& V - void loop() {
+ M: Y" k" Y; x: c - server.handleClient();
+ ?+ m/ `5 k% C' L - delay(1);5 ^" l) @& n& P# T9 }: s
- }. f6 I8 O3 d, B( G. ]
- String doGet(String url){
" }# l; ]5 t8 s$ U- F - if ((WiFiMulti.run() == WL_CONNECTED)) { O" }/ q" F, t* K0 C T- ^# n
- HTTPClient http;
0 j% _9 l3 @8 t3 J! t+ D7 V+ [ - Serial.println("[HTTP] begin...");
' [4 p" `. K7 f4 T8 Z) X3 |* N - if (url.startsWith("https")) {
" j9 j9 @1 }$ Z3 V1 d. x - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& D! }9 d( U9 u3 S3 R; ] a. \! D* V - } else {0 p' a, \! M6 E8 J- |5 j" y
- http.begin(url);
; E9 A8 U7 e1 n" A* i - }# R4 s8 m+ G; q/ P4 z% [; H
- Serial.println("[HTTP] GET...");
5 D# L5 V8 R: Z- H7 ^0 T: \ - int httpCode = http.GET();: Z0 F* d5 r! X6 d9 e6 f
- if (httpCode > 0) {
% k2 n/ C7 w2 v1 r - Serial.printf("[HTTP] code: %d\n", httpCode);
7 n7 f% T& S) N \. t, A - if (httpCode == HTTP_CODE_OK) {
: H s6 I7 U; {, n. T" @0 t. s - String payload = http.getString();
" Y4 J% \: N' h1 D2 } p - Serial.println(payload);* W/ _9 t9 B7 t) `/ w
- Serial.print("\r\n");
( [$ |! m4 J& Q - return payload;1 Z1 U( R: f* H
- }" E) W; R" M0 r0 s8 d
- } else {/ y6 A2 K: L" P9 k2 f
- Serial.printf("[HTTP] GET... failed, error: %s\n",
3 A3 U1 N: o6 J5 w; J - http.errorToString(httpCode).c_str());
0 _& v9 |: a5 q' u9 D. ~( j - }
M; S+ Y* l% E+ |) z - http.end();
# ^2 u% g* Y% Q7 B - return "";
- I; D% {& H1 Z/ d$ X! e - }
" ^, H0 s2 h' H) M( X. u - }
- p$ T9 l' w; _4 d* }! m; J* d - void mainAction() {. A0 F+ { z0 I
- // 发送请求2 B3 y0 X1 h9 F* _! g/ H
- doGet("http://google.cn");0 B/ x2 z1 h6 b9 s4 p) x
- }+ t' z9 Q) e; f1 b& x3 C
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