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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)
# o8 L- G7 V* B C, U9 K0 b- #include <ESP8266HTTPClient.h>" B, a5 @+ X- ]8 v- z
- #include <ESP8266WiFi.h>7 s3 f2 r# J. P5 h. B
- #include <ESP8266WiFiMulti.h>- R q1 G' w: S+ ~3 X1 p7 B
- #include <ESP8266WebServer.h>
3 g, u( N9 w( `* l( j" K4 @4 D. y - #include <arduino.h>. Y% f, g( x3 G: s* Z4 L: O
- ESP8266WiFiMulti WiFiMulti;8 `3 F0 u7 O) N
- ESP8266WebServer server(80);
1 o9 S8 a2 A' o' _1 w: Q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, i1 V, V, J- p( Q
- ADC_MODE(ADC_VCC);- Q" S- f# E3 L& D% p
- void setup() {2 C1 V2 y# G/ c6 \+ W
- Serial.begin(115200);! L3 K- h; I1 e9 u0 L" S' }& [. W* Q; f& U
- Serial.print("\r\n\n");7 ~) F% ~2 h* _) @: U
- pinMode(2,OUTPUT);% x$ X0 ^" X% R5 `
- // WIFI& \7 H, |; [ m& B& _& j
- WiFi.mode(WIFI_STA);" D4 Z! H7 D5 Y0 n
- WiFi.hostname("Sparkle");- ]$ E; Z) m9 b9 U: o3 t3 D( D D
- WiFiMulti.addAP("wifi ssid", "wifi password");1 Y; J. M6 {4 `+ m* d6 T
- int tryNum = 15;; z- D8 D. A9 t0 A$ H8 z+ X
- Serial.print("Connect WiFi"); T" N" I3 e4 W
- while (WiFiMulti.run() != WL_CONNECTED) {
5 s y' Y4 \1 }+ n2 G2 p/ p0 | - digitalWrite(2,0);, G7 U* j( |7 f0 N6 y/ t
- delay(200);
& S) Z# a/ g+ x$ l - digitalWrite(2,1);2 g) C! g [" @
- delay(300);, g8 E. g' `3 B( g! z+ t# J6 \2 b
- Serial.print(".");
1 d/ }& V3 z$ t2 U - tryNum--;
$ b0 `* P2 E/ N: {3 i - if (tryNum == 0) {$ ?; M$ y1 E: M# ?; T
- // 1min
! Q! d( L/ T) ?0 R3 u6 A - // ESP.deepSleep(60e6);4 y& h2 q+ j- {
- ESP.deepSleep(0);" v8 D8 r0 M1 k6 q1 Z7 \" F
- }
' i8 H- `; ]0 S( ?7 ~2 B0 d& L - }, l8 P4 V% }6 x) L8 G. x3 k
- Serial.print("\r\n");
" b' C( p: w5 e# `+ t; N - digitalWrite(2,1);( g& L7 F: e) e, a
- Serial.print("IP address : ");! W# T a& _: U) }
- Serial.println(WiFi.localIP());/ P, L* X' s" c) ~7 g% x3 _
- server.on("/", HTTP_GET, [](){; R+ P* Q* Z9 j) E7 `, R6 ]7 Q
- server.sendHeader("Connection", "close");- o2 I% r2 n; p5 f( h2 f3 ]
- server.send(200, "text/html", serverIndex);% Q! D1 M0 v( c0 y
- });
# d* z7 b+ ^; ^ - server.on("/update", HTTP_POST, [](){5 X- |( D8 i) C$ X+ Q% x3 N
- server.sendHeader("Connection", "close");1 R, a- k E2 j; z* V$ [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. `! ~2 J5 a9 @0 G l
- ESP.restart();
/ P& F3 M/ o% F - },[](){( Q" X4 W% M5 z6 ^! l
- HTTPUpload& upload = server.upload();
- y4 ~* k8 Y9 M: A - if(upload.status == UPLOAD_FILE_START){
. F% T" @% W3 e# k8 J - Serial.setDebugOutput(true);
; n: g) M. e' n, {# J" H+ e - Serial.printf("Update: %s\n", upload.filename.c_str());5 W3 w; U: t, z, z. p: T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' F6 o* c. J5 N: ]5 k - if(!Update.begin(maxSketchSpace)){ N* P7 \1 M+ V2 @# S
- Update.printError(Serial);( g# c3 H( q% q
- }. _8 d3 p" N0 P0 ^( q4 G0 j
- } else if(upload.status == UPLOAD_FILE_WRITE){/ M0 p# O* N: N- i* ]8 f2 M3 a
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- J1 R/ Q/ h- B: E. _
- Update.printError(Serial);; P! p: K" _! l3 _$ N
- }$ t; ~5 u# s; v0 p5 b+ {
- } else if(upload.status == UPLOAD_FILE_END){
0 R) ?; C3 g8 p3 X' Z9 s* H - if(Update.end(true)){
8 c! C) A. A" P( A1 f - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) ~, B! ]& H" ~8 Y8 j# L0 X
- } else {
# `. ^2 V% o7 Q. K2 M- V# w% y - Update.printError(Serial);' z" R$ u# `7 b+ K8 P Z' K
- }
& G% r5 [# R4 t2 e) |/ R - Serial.setDebugOutput(false);' E; G+ F5 u) V6 `5 ^/ W
- }
, D! r# T9 ^$ ~* B0 `& B; R - yield();; m+ k* m$ W3 F: b! e
- });
; `( S1 Y; j Y& M D+ @ - ! U' q% M6 S: G7 C# C1 s5 L1 f z
- digitalWrite(2,0);
1 ]$ D4 q7 R9 E* U- U* z. j2 O - mainAction();
1 p/ Q0 ^8 u! E2 T - if (digitalRead(0)){/ U3 j- r' n, V: o# o
- ESP.deepSleep(0);
: w1 y9 E; y8 W% n+ r! F; a - } else {
7 L% ^) B- F( c8 t5 I; g% o8 t f - server.begin();: R( a S- f: G1 T; W
- }
5 M# l2 H+ K0 ^/ X3 H% G - }% H$ B: k3 h1 j3 a9 ?. d7 A4 b
- void loop() {1 c: I3 M+ J" h$ z' p) D# ^
- server.handleClient();
7 r5 g3 u; G" y - delay(1);5 W2 ^2 c4 {6 Q/ q7 ^2 Q4 R- }
- }
( u" o3 [/ u' L - String doGet(String url){
4 ^! A$ I" o& F" |" w8 C( Y2 Y - if ((WiFiMulti.run() == WL_CONNECTED)) {: `/ j5 U2 K/ J
- HTTPClient http;8 F* g K6 f1 l) L9 d( {. \& B
- Serial.println("[HTTP] begin...");
& ~9 P! w4 s9 N# | - if (url.startsWith("https")) {
9 u. w1 d7 d# l3 {# l! ] - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 `7 {5 n/ O: z8 U+ @
- } else {
! V: Q+ M) B- h; ~# R# Y" X4 L - http.begin(url);
" ?0 ]5 u, z# U5 q: C- Q+ I1 S - }
( [ J3 K" T9 L' b0 u7 k) s - Serial.println("[HTTP] GET...");* M' l D: n2 x8 b1 z
- int httpCode = http.GET();0 }. x* f( L; Y
- if (httpCode > 0) {5 e( {" ]" a* G3 W! t
- Serial.printf("[HTTP] code: %d\n", httpCode);: D8 @4 K( ]" Y7 L/ }
- if (httpCode == HTTP_CODE_OK) {0 k: }" L% i2 i+ @5 V2 N
- String payload = http.getString();
9 q1 p; A! s/ t - Serial.println(payload);$ G1 t- T, D$ h; T9 ^
- Serial.print("\r\n");
+ M; E7 H& ^: n8 R$ Z; j - return payload;
' D+ f. Z2 {5 o4 |/ \4 r - }+ U( f' |! u* |& V; {
- } else {1 r4 a0 J7 m9 D; a. M, C
- Serial.printf("[HTTP] GET... failed, error: %s\n"," y- W. y9 y8 E8 m9 Z4 v8 u, n
- http.errorToString(httpCode).c_str());% f% W! Q$ t4 y+ L! a; y8 j
- }4 j" Z1 n( A4 w& j j* w; W8 p% t3 b- \
- http.end();
% v+ f& e2 K) f' n P) n - return "";
2 Z7 \- q* b" Y, g8 G - }. ^. B6 @2 S! \4 ~6 V' L
- }
' O- G G1 l# u" h& [2 E) `% o3 ?0 M - void mainAction() {
2 z( q7 e: k3 P% u$ G8 m/ t1 M - // 发送请求. T$ n5 d7 r) E ^5 `8 D
- doGet("http://google.cn");
: [2 h7 G6 m9 k U7 ~ M2 i8 g - }
. v" o6 T5 T1 }& R
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