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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)
( n8 z$ [ I% }( h- #include <ESP8266HTTPClient.h>
* x! V- \+ q6 C9 _3 ? - #include <ESP8266WiFi.h>, n0 y) x* s; `3 |) ^5 h
- #include <ESP8266WiFiMulti.h>
; s/ M* W& ]3 y# y - #include <ESP8266WebServer.h># C2 U c- q0 h+ b3 I" w! z _1 o
- #include <arduino.h>2 \ i, T, [7 C- B
- ESP8266WiFiMulti WiFiMulti;3 S. F/ \3 Q+ D+ q' \* I, n
- ESP8266WebServer server(80);
+ T+ d: k5 q( O9 ?' Q- ?3 n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' H% ?; @1 l( A E' b/ f2 J
- ADC_MODE(ADC_VCC);
# b, P, q6 r/ K. G) R8 ~. d( N - void setup() {- j2 k8 t7 j$ Z, X
- Serial.begin(115200);6 T/ @+ s5 X+ q, O E i
- Serial.print("\r\n\n");
: I8 ~1 i7 ^: C* b' `3 q. q - pinMode(2,OUTPUT);2 A" o. b$ r4 Z% X; u% {7 i
- // WIFI) `" X: m) p1 R8 Y# ]: I
- WiFi.mode(WIFI_STA);
# X n% t: m l" J3 A4 g! f - WiFi.hostname("Sparkle");
% B0 p- K; ]7 _7 B6 p( _* P - WiFiMulti.addAP("wifi ssid", "wifi password");. w7 _- @7 \) W" d
- int tryNum = 15;
% p3 K5 s& f. s! C E' g! V - Serial.print("Connect WiFi");* a9 c! y/ H( A5 }6 R
- while (WiFiMulti.run() != WL_CONNECTED) {2 m4 v) P9 |% L3 d$ Z* [3 @. ^
- digitalWrite(2,0);$ N" E d& \* J# k7 v
- delay(200);
. p5 s( \' W$ s8 j) }( ~9 a0 o9 V4 R! O - digitalWrite(2,1);, } U5 w5 f( A+ a) e% s ?9 q
- delay(300);
/ r6 C2 C; U* m1 _$ ]* D, U - Serial.print(".");
) l( t1 H* Q% n m" \ - tryNum--;
: Y; [9 z6 ^# C$ h! ?8 q6 Q - if (tryNum == 0) {' v, Y1 E. s5 Y9 ~+ `: x
- // 1min# Z4 E' Z1 V5 s* l! }( V
- // ESP.deepSleep(60e6);, `; |, ?* Z* J* u; _* C, _
- ESP.deepSleep(0);
) h) n: Y- }$ L! T7 n - }
4 T3 T8 u$ P7 `$ ^ - }" \8 n$ X# Q, u& A* T6 o& A
- Serial.print("\r\n");
9 S, ?) k! ^& L1 g( D5 W - digitalWrite(2,1);
2 ?$ U- T# B: q0 b; Z" v2 a - Serial.print("IP address : ");
8 {3 d Y. e, {. D/ c0 O$ k - Serial.println(WiFi.localIP());
8 F1 b8 ^& a& ~8 U. O( n - server.on("/", HTTP_GET, [](){
1 D5 d. e/ p' Q; X: h - server.sendHeader("Connection", "close");
3 w1 { Y% G- z: @2 @ - server.send(200, "text/html", serverIndex);" z, a0 q$ a- y% y4 J" l
- });! |7 F* {" `7 M# L
- server.on("/update", HTTP_POST, [](){
! B$ `/ z% |; U* U4 n/ T8 D - server.sendHeader("Connection", "close");
% ?$ _1 p! z$ F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- A, D, @$ j4 K - ESP.restart();
6 K- D) a" p; i - },[](){
7 p5 E/ \* N: m - HTTPUpload& upload = server.upload();
* k( t5 V6 ]1 U4 `4 d7 l) ?- e - if(upload.status == UPLOAD_FILE_START){1 |" ]" r8 r& B8 T4 j
- Serial.setDebugOutput(true);
8 q2 n. t2 F* R! ]; c - Serial.printf("Update: %s\n", upload.filename.c_str());( B x2 }# u8 e: p
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" e9 P: S- V; s% b6 T6 Y
- if(!Update.begin(maxSketchSpace)){4 n! Z; }" u, P- T* i; Y2 J9 [7 l
- Update.printError(Serial);
; T Q3 k0 \: v8 i, m - }
# B; F2 R# M. _) ~+ Z1 E - } else if(upload.status == UPLOAD_FILE_WRITE){7 y( K5 ]$ q4 O& e* n1 R
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; R6 ]8 e* d$ T! e! b - Update.printError(Serial);4 Z% q6 Y6 [, }: V
- }
; w' @ H' g b( H! o - } else if(upload.status == UPLOAD_FILE_END){
# t( K7 r4 h# o8 f& b - if(Update.end(true)){
8 ]4 Q7 d; N; w" Q4 B - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 Y- v7 G) @0 m1 h - } else {
# K# i9 V- n4 W& U( O - Update.printError(Serial);+ Q0 V, B& n* e# o
- }2 x4 z: W# w& u' k; B- Z5 p+ `3 [, i
- Serial.setDebugOutput(false);1 E& p& h# g4 Y0 Z2 T8 _
- }5 v9 V, S, \) V4 Q
- yield();/ o* L. y' z' P$ `+ l# Y# W3 t$ T
- });$ n$ _% h% p3 V2 ]) x. u- N
- - p2 r! x/ [7 I+ ^: H3 J( G
- digitalWrite(2,0);7 y, W# c _% t
- mainAction();
2 P1 E* K3 i) R" d$ s q+ D- j - if (digitalRead(0)){( G# P; n' D5 R3 L
- ESP.deepSleep(0);" m# \9 _" `9 o
- } else {
2 @% T7 U2 x3 [6 S+ B) Y1 m - server.begin();
" r4 ^+ @6 j+ J) ~# N+ U: E$ i - }6 N# Y. b0 f5 z# x1 M0 X& x0 _/ j. v
- }" P3 ?2 }0 K" \8 s- \6 \" E' l
- void loop() {
2 S8 R! W4 T- y% I! S - server.handleClient();
& q7 r+ E& ~; f. O2 A - delay(1);
9 {/ ]7 t8 A+ a' k" R% z. W2 O - }
- ~, R; Z; ~" e- A1 T# R - String doGet(String url){
' b3 J; Q7 n Y8 k - if ((WiFiMulti.run() == WL_CONNECTED)) {; ^4 I6 u0 l) U1 @' _/ {% F5 q
- HTTPClient http;
2 I/ _8 |& D s4 s0 w: E - Serial.println("[HTTP] begin...");
1 ~* t; a, y7 N9 p. m - if (url.startsWith("https")) {# ]! N7 U0 ~) i) j+ l
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- w2 I' R* g4 Q: a
- } else {
8 f x, N4 [0 o3 h# p- w) s - http.begin(url);
\2 n; P/ I Z9 h* L0 ^ - }
! R" ~8 A! M4 M2 ~ - Serial.println("[HTTP] GET...");
4 z4 s+ h, F, B, _( I7 n6 _ - int httpCode = http.GET();
( L5 n& C4 `" z9 p- H+ y - if (httpCode > 0) {% p5 V0 z" `! L9 L( J& F" Q
- Serial.printf("[HTTP] code: %d\n", httpCode);. D: ]2 |. w, z2 W/ d7 c
- if (httpCode == HTTP_CODE_OK) {3 x! [6 W: c( k2 m
- String payload = http.getString();. i& W6 s7 g- Y0 _$ J l
- Serial.println(payload);
- I3 v, S% l0 @8 J# k - Serial.print("\r\n");$ @* {/ K/ y1 p3 W
- return payload;
9 `% S4 ^" s2 d* a, L; I- N& d - }% L+ `/ T: T& U
- } else {
! d( t( U/ q6 l+ d2 n# @% A - Serial.printf("[HTTP] GET... failed, error: %s\n",' V6 ?8 C5 S0 K$ ?# ?; K" x
- http.errorToString(httpCode).c_str());
' T2 I6 e: z" s$ r* `" p4 Y5 g7 b - }5 n( D4 R5 R7 }; J/ h e: d. u ]
- http.end();& |# C& j1 e X3 H: }( d
- return "";
* F- V, _* V/ O" p1 X& ]% V - }. h2 g: \* c4 A9 L' G
- }9 n" W& J+ s3 b# F! p
- void mainAction() {
+ |: r8 m9 r+ d( s4 e4 M% |9 R - // 发送请求
8 B+ s& M B0 q: f - doGet("http://google.cn");
$ L2 u* @' b. h+ Y" K6 ?5 ~ - }
$ p' k9 i2 ~; ~5 k4 x0 m. `
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