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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)! N, Z8 c9 Q& Z7 l7 P$ N
- #include <ESP8266HTTPClient.h>8 ~$ P# S9 l5 k/ J8 a9 `
- #include <ESP8266WiFi.h>
3 p( l- W2 ~1 H" V# f& @( H V2 q - #include <ESP8266WiFiMulti.h>! \8 P2 A7 D' _
- #include <ESP8266WebServer.h>2 n- l7 p; }+ E0 {* v' n2 k" _$ X
- #include <arduino.h>
3 U$ y0 r; `0 }* t( u - ESP8266WiFiMulti WiFiMulti;) Q C S0 W6 i) u
- ESP8266WebServer server(80);% j! F# L, K; r7 ~- b& J( j& o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 X1 B/ `* ?' x1 h7 N8 M - ADC_MODE(ADC_VCC);) \! T4 p8 `, I+ |- K. k
- void setup() {
# h$ I8 F+ f/ v1 Z; i, t3 [/ s - Serial.begin(115200);
3 u, i- T, X4 `( B* b) N% k4 F - Serial.print("\r\n\n");
4 J7 `- K& _4 x7 h7 T - pinMode(2,OUTPUT);
( {% n& l6 Y6 J - // WIFI
# U( y6 ~0 Q( t - WiFi.mode(WIFI_STA);$ s9 g8 I8 ]# C5 q2 m
- WiFi.hostname("Sparkle");
% F' Z3 W9 Z/ @- k - WiFiMulti.addAP("wifi ssid", "wifi password");6 x( t$ M$ p6 F8 P' p. e
- int tryNum = 15;. D) ?0 m/ H1 K% `
- Serial.print("Connect WiFi");, a! w8 S& O* M1 z
- while (WiFiMulti.run() != WL_CONNECTED) {
2 O& }7 y Z0 I! ? - digitalWrite(2,0);
! j7 M3 K5 t+ P1 z0 ]4 l - delay(200);
5 T$ O3 S* J" I0 r* C - digitalWrite(2,1);
5 U! a2 V. m/ G) `; c" l - delay(300);/ j/ V' j1 L# ~, w; `9 T8 _9 R
- Serial.print(".");
* D4 O+ z! u4 `$ {+ H! r - tryNum--;
6 q; X/ ^) Z0 o+ t! \1 v - if (tryNum == 0) {
F, R# {7 D1 g# _# ~ - // 1min
Q( s$ x% }$ T - // ESP.deepSleep(60e6);
: A" c3 T( G. z# Y/ ]2 x$ Y( | - ESP.deepSleep(0);- o0 _9 r1 p4 m! U& }
- }
5 ^/ b9 Z8 N- U - }' `- W/ F' s* A5 e k e3 B
- Serial.print("\r\n");$ J; {* }' O2 F
- digitalWrite(2,1);
4 p' m( J- B% Q, ]1 r+ T4 E& \ - Serial.print("IP address : ");- v, y+ ?3 p/ W: D2 G3 P/ D
- Serial.println(WiFi.localIP());4 c3 }1 i; q+ C. A* I
- server.on("/", HTTP_GET, [](){
- Z' Z- Y: k5 }8 V( s! i8 e: C - server.sendHeader("Connection", "close");! m7 z* @7 Q& Q9 P4 V5 ]! \
- server.send(200, "text/html", serverIndex);
2 J3 e# x/ A% Q. O - });! j$ V/ A) l$ H( ^
- server.on("/update", HTTP_POST, [](){
" K5 b u/ L- V/ _ - server.sendHeader("Connection", "close");
/ i4 c, |' {6 B- @5 Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ c# H+ J( B. E: W1 X% i# q$ I
- ESP.restart();" ^4 ?' @4 C% |& ]' ?/ i; H- `) T
- },[](){# {# t6 \( F- \/ i
- HTTPUpload& upload = server.upload();. V! i* n7 l" j8 }
- if(upload.status == UPLOAD_FILE_START){6 q* u! F( [& b) ~
- Serial.setDebugOutput(true);* j4 A$ a6 P3 t
- Serial.printf("Update: %s\n", upload.filename.c_str());
( J+ W5 q2 R& v0 [ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 o3 f9 D4 X- v) G - if(!Update.begin(maxSketchSpace)){
8 j; N3 A. @3 e. U1 O6 a - Update.printError(Serial);
; }) Z, Y. ~; d4 h - }
' w, \/ p& P- e - } else if(upload.status == UPLOAD_FILE_WRITE){8 t7 _* C2 }0 I
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 m. J! I9 _. Q& j
- Update.printError(Serial);1 A+ F' {$ J/ J- M: b
- }2 L% z+ m% n( @
- } else if(upload.status == UPLOAD_FILE_END){' ?4 N# y+ x9 G, S7 N
- if(Update.end(true)){' H: w, M# M: g" I2 C7 w6 G9 y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); O# q8 f2 i8 m- X7 {# n1 M
- } else {3 X' ?9 ^6 h0 G6 e8 k3 M
- Update.printError(Serial);' P0 i; T6 V- G) `. y) m* }2 Y
- }! B5 Q! ~" M9 F" }/ t
- Serial.setDebugOutput(false);0 K# C5 x+ M, H. Q
- }
. ^4 B+ U% W0 ~7 t' o/ A - yield();: J3 q9 Z- G$ G# y
- });, J* z1 e" U7 ]" M0 ?3 P5 P. z4 Y! p, H
-
# h9 Q* T4 _& Q: B* C - digitalWrite(2,0);3 J/ |7 M" P" _; x! V) @
- mainAction();4 W- u8 I; {8 L) N% j' Y8 H! F
- if (digitalRead(0)){
3 j& C* e7 {2 g: N9 }+ V, U - ESP.deepSleep(0);, z* P0 s5 Y; }# ], u; j4 g4 U
- } else {
4 m& e* z! y" C* F* y - server.begin();) b c6 c2 a+ H! j) x) e, ?1 N% S
- }! o0 Q' Q2 q8 |6 O9 [0 V+ F
- }
. ]* R: l+ l6 V$ a0 M- k - void loop() {
% E* N8 M% l1 e8 o! K* D - server.handleClient();! m( H) i* v7 D
- delay(1);
/ z( W* n( \& e @. g+ v% G - }
! U- y# K$ I0 V- x+ ^% q% c! Y - String doGet(String url){& L o* k9 a5 o6 n+ S
- if ((WiFiMulti.run() == WL_CONNECTED)) {
2 E- r9 |0 V9 U p. D3 q - HTTPClient http;
) ~2 \' w! [6 s5 |$ }) s) {' | - Serial.println("[HTTP] begin...");$ T9 H) N/ T- U
- if (url.startsWith("https")) {# j/ h$ |. j5 N; G
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 m- [- s; p: L+ s; d
- } else {/ H2 U1 }, f n, V8 p9 Q6 F @0 {
- http.begin(url);
! X! w' W2 z2 Y& F - }0 {3 F/ i% f5 X% G
- Serial.println("[HTTP] GET...");
5 v0 J( _1 Q3 a! P$ d3 m - int httpCode = http.GET();" ~# N" j5 x7 J/ P& T2 l
- if (httpCode > 0) {* c6 }( C9 [, ?) b- O2 q- g" y7 b. G
- Serial.printf("[HTTP] code: %d\n", httpCode);, `( o8 `/ d9 f
- if (httpCode == HTTP_CODE_OK) {
4 X* ~1 L+ d" g5 \+ t) Q4 p - String payload = http.getString();* K8 l( n5 B5 F$ X, S$ \/ [$ a3 {
- Serial.println(payload);
. b8 s1 c( i9 l - Serial.print("\r\n");, w6 Y& b' v2 P4 {$ _* t
- return payload;8 B5 A% V) a6 j' R/ y
- }& |" z8 T) r- m4 R: z7 a
- } else {) s( l6 _! z. ^ Q% A; \3 l9 j4 A
- Serial.printf("[HTTP] GET... failed, error: %s\n",& b1 l ]$ }* w7 ^, t: d c
- http.errorToString(httpCode).c_str());
/ G6 u. Q* X, y! o2 c, C - }5 n& [0 u' X6 J) P; Y$ O
- http.end();4 r3 L8 \* p: v2 Y" E3 p8 A) Z9 P; H% }
- return "";
0 g5 E* ]7 u! K/ \ - }
% D1 p. e$ D) j - }% F1 k8 R( N2 r9 ^% m
- void mainAction() {
+ J2 D8 L0 i7 k+ x; h' D - // 发送请求1 M4 @; x2 G: W |/ B
- doGet("http://google.cn");
2 m L% c3 ]8 O y - }
0 z; P2 x* F5 L5 X! _8 q
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