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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)
; I: ~1 R6 `( W: w, ^2 V9 V- #include <ESP8266HTTPClient.h>9 B: b8 V. h5 W# r
- #include <ESP8266WiFi.h>2 A1 I' t7 D" N6 D9 H, H
- #include <ESP8266WiFiMulti.h>
2 y$ e* V3 X' [+ D2 c% S - #include <ESP8266WebServer.h>
. Z0 n, {" d. `4 H - #include <arduino.h>
8 K) Y2 K& g0 \ - ESP8266WiFiMulti WiFiMulti;
+ o" Z0 H% Y6 ^ - ESP8266WebServer server(80);4 } [7 i% X! r8 W4 S% Q+ U
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' F( q# f$ X5 l0 [4 M/ k - ADC_MODE(ADC_VCC);1 N; F2 l% [+ F9 D2 t
- void setup() {
6 Y* O! v; p/ B2 b8 a0 W - Serial.begin(115200);
: i$ b0 s- }3 p4 f1 \# p$ I - Serial.print("\r\n\n");
6 P) E j% ?" ?% V - pinMode(2,OUTPUT);0 b* J. J' n7 @) U0 G" ?8 A' b
- // WIFI
+ t$ q P1 B9 `# T# k2 | - WiFi.mode(WIFI_STA);
7 _% S/ ~7 L+ T5 j# ~. | - WiFi.hostname("Sparkle");
2 Z# O+ j1 I6 F8 s( Z - WiFiMulti.addAP("wifi ssid", "wifi password");
' @- O' Q6 H6 m3 `/ ~. i - int tryNum = 15;
2 w8 {+ n2 X1 [8 _/ }, [! t, t8 n - Serial.print("Connect WiFi");
4 [, {1 F% b7 p# _ - while (WiFiMulti.run() != WL_CONNECTED) {
- ]" U- c: J* ]- h ?- F8 e. c) l+ S - digitalWrite(2,0);
+ i4 X# v4 `, m, G8 u" Y& Z8 X8 _ - delay(200);1 j: k& V3 \3 d( w
- digitalWrite(2,1);
; w. q& A. |# | - delay(300);
" S- N' X: Z5 C+ m/ r - Serial.print(".");1 `6 }# W7 `2 d& i$ ?* S2 [+ G4 @
- tryNum--;" @ M5 e, Y B) r. D& t5 k
- if (tryNum == 0) {- e* {* f9 f4 q4 S* _
- // 1min, T0 w9 J" C+ V. J8 f% x9 T
- // ESP.deepSleep(60e6);0 n1 n: Z5 g8 z, N4 }
- ESP.deepSleep(0);& P1 A9 k8 B) `) _
- }
4 K7 K, g) m5 z3 c/ q! a$ x - }/ y9 w- u8 `1 v- t ]& q
- Serial.print("\r\n");- |! x" W" p+ `
- digitalWrite(2,1);
) u d/ n: o' L1 W6 O" \ - Serial.print("IP address : ");
. G7 T% @! L3 e, W - Serial.println(WiFi.localIP());
# o( o, f9 o4 A) S5 h - server.on("/", HTTP_GET, [](){
2 c+ A; o& P1 g" c9 l/ C5 J. w6 z/ V) I - server.sendHeader("Connection", "close");
. l4 C/ l3 O; L5 W* X' |: M- m - server.send(200, "text/html", serverIndex);
. k+ u! A- E2 e. B - });6 `- x; \$ e1 U6 L! m' w
- server.on("/update", HTTP_POST, [](){2 w4 e! g' l- j0 q/ f
- server.sendHeader("Connection", "close");
/ v, I2 ~ q: i) z0 \% L - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& w2 Y" l; ~8 o - ESP.restart();
* r0 Y# D- q( N+ h! ] - },[](){' |4 ^: t9 c/ h G. B _ i
- HTTPUpload& upload = server.upload();& P! A w, P9 d( a; @6 h9 M4 ^
- if(upload.status == UPLOAD_FILE_START){
3 b/ A3 o9 x3 n - Serial.setDebugOutput(true);; b' H) |$ f8 E/ w* q
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 h( t* [0 d4 d: [$ D1 V - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! \0 ^6 }3 w% |. h - if(!Update.begin(maxSketchSpace)){
, j5 E# @( ?6 r. X) T - Update.printError(Serial);
7 Z0 [- R% d" e: W. L Q5 L9 n - }1 U7 J$ a$ `- X2 K# p" W
- } else if(upload.status == UPLOAD_FILE_WRITE){
& Z, D) E" [$ m - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) e5 _& U& J7 V3 }2 ?
- Update.printError(Serial);
% J, _, b0 o! {0 M3 N - }* ~* ^3 S. Z9 ~( }: ~
- } else if(upload.status == UPLOAD_FILE_END){/ e- w' _) Q' _2 D; n/ d5 t
- if(Update.end(true)){6 e' f1 J9 t& v5 t0 t
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
6 F" {: y* q1 m& r - } else {
" }& J. L) G8 F6 ^8 k3 h9 ? - Update.printError(Serial);9 t% E% g, z4 u7 E F E
- }
+ ~0 U% I: \8 P) z7 G - Serial.setDebugOutput(false);
" r m, k9 e9 W% P. T, C* O - }
, {+ D( E0 ^) r3 M( s* G+ |7 z - yield();7 X5 b7 `4 q; _
- });0 W, ^/ c1 }/ Q; S: ^
-
! A* O" s. q* c" c - digitalWrite(2,0);6 L. [/ F6 R! Z2 A2 ^( [
- mainAction();
7 a$ I! _( x0 K K& K5 E - if (digitalRead(0)){
: u$ m/ j" d' h8 w - ESP.deepSleep(0);8 Z3 s) q) R3 {8 W
- } else {. D I, Z3 T1 Q# e1 K% ]
- server.begin();
# ?* h, B2 f+ v3 w1 @4 U9 B9 D - }$ t5 z' W1 }& X4 ], b
- }
0 n; ]' _+ P" G9 A% k8 f# g4 K1 X - void loop() {
$ y+ Z) m7 Y8 a7 ^; f - server.handleClient();
6 @+ c# z8 v1 W+ j- \ - delay(1);; b4 U4 g O* b) }! L7 m
- }
- ?' h) c. s% S/ H9 H6 `9 ~ - String doGet(String url){5 H! E6 ^: J6 X' G
- if ((WiFiMulti.run() == WL_CONNECTED)) {- e% c, F- S6 g( h& w
- HTTPClient http;. l3 t( W1 t" A5 c9 z
- Serial.println("[HTTP] begin...");+ X" [; ?$ C2 q3 R
- if (url.startsWith("https")) {
% I1 P1 ?3 p4 a j+ Z& H" ]8 l V - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
' m- V) {' Y/ S - } else {
6 S, B5 G; N- [) H l( o! C }1 g& Y - http.begin(url);
0 M, X! Z9 E$ Z; v - }
( K) E2 o+ u7 z+ u8 X" j - Serial.println("[HTTP] GET...");
7 B. U, P* b3 q( @% }/ S - int httpCode = http.GET();! m( S- V7 H0 ?; [, a3 I
- if (httpCode > 0) {" S$ O# }5 ~* j" d) h. L
- Serial.printf("[HTTP] code: %d\n", httpCode);
' X/ Z9 u& q* P8 D5 z: k - if (httpCode == HTTP_CODE_OK) {
e: M2 A% T7 a6 ? - String payload = http.getString();! l+ x% C$ ~/ c; U, ~ t
- Serial.println(payload);3 g" U- G6 W7 C2 V/ U, q
- Serial.print("\r\n");7 R# H3 H% A. Q2 C$ v r H4 a
- return payload;! \1 \' Z3 B; D
- }
0 J$ p+ ^$ k$ c5 E8 O; f5 G - } else {
- U/ g3 M4 X* L - Serial.printf("[HTTP] GET... failed, error: %s\n",
' P0 z2 C& p5 d - http.errorToString(httpCode).c_str());
1 k9 K, C- y1 F0 Q8 q: ~& J- [ - }
8 M( ?' Y V+ Z% R - http.end();( x0 ` D2 ?: `! I8 G) ? _
- return "";
% f; }( p. C0 ^2 A, ~ - }) _7 P, Y9 }2 A p
- }
' w# Z# b( v, u' Y* P- I& o2 \ - void mainAction() {1 z7 G! A( G% e
- // 发送请求$ o5 ~" A0 |' S/ v$ L0 T8 E
- doGet("http://google.cn");
' [, Z( Q5 G7 W6 L7 u - }/ [& }+ ~* d* R$ r! O, f2 w
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