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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)
5 j$ m: \" p( d9 K4 m, @- #include <ESP8266HTTPClient.h>1 Y. t3 }( P* n0 b' s
- #include <ESP8266WiFi.h>' q$ J6 {& { D7 X# E
- #include <ESP8266WiFiMulti.h>% L' y1 L0 @8 ^
- #include <ESP8266WebServer.h>- K5 p, [" }6 a- x& N( O1 R
- #include <arduino.h>2 y* b& M/ d2 i+ b
- ESP8266WiFiMulti WiFiMulti;
4 y/ s0 n# U2 f _* S1 ], _6 M# b - ESP8266WebServer server(80);- b3 F! z0 E6 ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 H6 [/ l1 Z. @) K - ADC_MODE(ADC_VCC);
4 Z P# Y- m$ u1 [( N. p2 y- r7 X - void setup() {
4 U% K. G! T6 R9 F - Serial.begin(115200);
5 [5 E; _: w% X6 ^ - Serial.print("\r\n\n");
{' y$ s, M" w - pinMode(2,OUTPUT);
# B3 [' e$ m( ^* e, _7 c% ~ - // WIFI
6 k9 z: d/ P: q1 K K4 X! J# x - WiFi.mode(WIFI_STA);) c) _ l9 G2 x. |+ R/ Q- u
- WiFi.hostname("Sparkle");
! i- h. E' O, L5 ] v8 N9 C - WiFiMulti.addAP("wifi ssid", "wifi password");4 M" Y6 b K I7 q) ]/ I9 }
- int tryNum = 15;! E) \4 W, J: a0 h* H0 M9 M! h+ d
- Serial.print("Connect WiFi");$ U3 J% z. m8 a* _
- while (WiFiMulti.run() != WL_CONNECTED) {
2 ?; D9 Z8 O, T( M3 `' u0 p: @ - digitalWrite(2,0);) U( a" P: `. }0 o
- delay(200);
+ m% s% T% H; O, G6 M2 C - digitalWrite(2,1);
) G+ z6 D1 I+ D* n1 o - delay(300);
0 N) P, Z1 ?1 e5 m* x# Q - Serial.print(".");
. I3 N, e# q" S8 ?5 S - tryNum--;8 `' T5 }2 `: l e+ W/ M
- if (tryNum == 0) {' g3 a2 u4 L. c% d
- // 1min
8 W8 [* A |2 h. P2 z - // ESP.deepSleep(60e6);
Y3 h+ f4 ?& |2 z! q. V) E - ESP.deepSleep(0);
) b" n4 {/ f" j) ?0 O/ c8 X# x - }3 O5 _7 Q; U0 w% t; y5 l
- }, K2 Y' y5 ~3 a, c3 W; f6 l7 i# k8 O* Q
- Serial.print("\r\n");
& r! U+ \/ _ \( F3 p' i3 a" T - digitalWrite(2,1);
6 J6 C" w. L. x) B2 o - Serial.print("IP address : ");
$ u, Q+ x- S; Z8 L - Serial.println(WiFi.localIP());/ M/ F$ k k* P0 i+ L& ~
- server.on("/", HTTP_GET, [](){3 I: ~1 _4 e& i( _4 Q+ @
- server.sendHeader("Connection", "close");
7 ]6 l6 R! k! [4 d L" L - server.send(200, "text/html", serverIndex);
* S2 P4 {- @7 H( N - });
; g# a( p2 r/ Y( J2 i: R9 Q - server.on("/update", HTTP_POST, [](){8 Y* D' Y, j3 Z9 v
- server.sendHeader("Connection", "close");
% S2 D8 [0 U/ R' U4 \ K - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ N5 C* o& t8 v6 D! V - ESP.restart();( b- \' Z/ ?- E' R
- },[](){* T3 C; `8 H0 m0 m; n5 j( h
- HTTPUpload& upload = server.upload();
6 u2 x1 {, x, p0 j- ?% H - if(upload.status == UPLOAD_FILE_START){
9 \0 H# ?9 t( {: }: q/ c& ` - Serial.setDebugOutput(true);
* o, b; ?' F( `8 v' v8 c - Serial.printf("Update: %s\n", upload.filename.c_str());- k: Q/ @5 f3 B, b1 A2 J# D
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' {+ u" x" y2 r" a& u - if(!Update.begin(maxSketchSpace)){
9 X( |9 m; T* F0 y- V) p2 } - Update.printError(Serial);
- z2 @9 q7 j, ~4 @) F }$ l - }
+ x+ ? b3 F+ B1 _6 N& m6 Z - } else if(upload.status == UPLOAD_FILE_WRITE){6 ~5 b4 O/ ?8 P) ? H9 C f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 K% ~# R) {3 Y/ C" Y; H! r - Update.printError(Serial);
3 M1 l9 }* E, c* S4 k% E - }
# U" k: U9 C; b7 l* _ - } else if(upload.status == UPLOAD_FILE_END){' @" Z/ D9 ~3 w9 b* \
- if(Update.end(true)){
1 y9 d5 r7 W- S w+ h9 Q( Q, z5 { - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 {- [& e- y2 V0 E) v
- } else {) g: Z" x% G% a- m8 {
- Update.printError(Serial);
d* j8 l0 T1 t, [ - }
) j$ M+ @/ v* Q! y y- [. z& h - Serial.setDebugOutput(false);- s- d1 j, u# D
- }
( A* A8 e7 Q+ d& {& p1 j, ]/ G - yield();
5 A: k3 o; g2 S4 M - });7 n, C) }/ B. K2 w5 n. [) N |
-
" A4 B1 ^" x/ t- V6 O7 c' E$ E; q. C - digitalWrite(2,0);
3 d+ X l1 n# V6 q) O - mainAction();
- L3 M6 F: v( B5 ^5 H9 n5 m0 R - if (digitalRead(0)){( ~9 A& c! D6 e" V" L. m7 a! ]& R; O
- ESP.deepSleep(0);/ W& t! Y( U( t3 c. r1 w+ u* [
- } else {# R/ A3 Q1 ~) j9 F
- server.begin();
1 W4 e- ?& y0 V6 F0 Y - }3 S% z5 t) P6 ?4 f
- }- f! w. G) b6 r( A% X0 L( p
- void loop() {7 C+ u1 N. J- i' y' l2 l
- server.handleClient();1 S; a1 M5 b; ^1 U. y2 ]
- delay(1); R9 p4 t% W9 J& N6 Y
- }
6 v& Q/ }) i/ l( o - String doGet(String url){" D+ A/ k( B) I |
- if ((WiFiMulti.run() == WL_CONNECTED)) {
' _. D0 R" B% y2 F1 k - HTTPClient http;
4 D6 E) r! B' P4 | - Serial.println("[HTTP] begin..."); B! S3 E/ Q% p; x9 D
- if (url.startsWith("https")) {
" m2 s/ v3 y8 w* ~" v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" \" g9 a: f5 _ - } else {
( V4 I5 j, r) d" n- g: p6 C - http.begin(url);
7 R6 [; Z+ @5 c+ ]( n! V- }" X - }, M/ D9 P4 l; Z/ m. s; }# C
- Serial.println("[HTTP] GET...");( T% Z1 e) a F3 C9 |$ a
- int httpCode = http.GET();
1 Y ~9 o& Z) f0 E' o2 N; _% l9 _ - if (httpCode > 0) {
/ |) t' V& \& q7 k6 u" L. d - Serial.printf("[HTTP] code: %d\n", httpCode);
6 h3 Z% X+ B R$ l0 K - if (httpCode == HTTP_CODE_OK) {! o1 n, l8 r# v* f
- String payload = http.getString();
; B' g6 \8 ~+ g. {& u8 w - Serial.println(payload);: m! k3 X! c5 p3 D, c$ ]6 r
- Serial.print("\r\n");- n( [6 u+ Q* o& {3 a
- return payload;
3 i' x- V3 U; n, B3 \$ V0 r - }* D W$ h* v; l/ w
- } else {
: J" c q" Z2 D* c: u - Serial.printf("[HTTP] GET... failed, error: %s\n",1 @1 e: a/ ^/ \4 G
- http.errorToString(httpCode).c_str());5 v8 A) ~) Y# O7 ^* k T3 P
- }* Z+ m$ N" E1 X5 C. h' z
- http.end();
; O9 e0 L" o I" A+ Z! @4 x - return "";3 Y& b9 P* n- x- L% S
- }
" ^+ Y7 T* a0 c6 F' H% D' q0 G - }* u. m: ]" k2 U9 z. p( z
- void mainAction() {
0 ^3 W% [; |4 v' K - // 发送请求' }2 ?% M& S& `0 z1 o
- doGet("http://google.cn"); C; E0 {* o2 r9 D5 ^
- }, c- @7 X) [1 u2 @" a* c: d
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