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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 H+ Q; e! i( b g1 m- #include <ESP8266HTTPClient.h>0 H4 d) g9 [2 V8 p
- #include <ESP8266WiFi.h># X; S( i6 R8 I+ O7 R& v) A
- #include <ESP8266WiFiMulti.h>
! E6 _ h' Q- y6 v( W2 L - #include <ESP8266WebServer.h>
9 g+ u4 \9 d5 G) `, R - #include <arduino.h>; V- l2 S& A6 r
- ESP8266WiFiMulti WiFiMulti;
0 B! l/ [6 a9 t& \* P) t+ m - ESP8266WebServer server(80);9 Y9 C7 h6 \0 f: K$ l. u/ m
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
$ z% ]5 m2 \* I# S" }4 p+ c0 i$ ` - ADC_MODE(ADC_VCC);9 q; X" u' a# p! w
- void setup() {
5 m6 Q* {% W; g; p0 o - Serial.begin(115200);
, N/ T+ f/ D: P3 v( Y - Serial.print("\r\n\n");3 p8 X+ `' y& w6 v7 U5 U" O. U
- pinMode(2,OUTPUT);! p' p7 O1 s% o4 E- i5 h: |
- // WIFI& U) S3 }( ^+ c
- WiFi.mode(WIFI_STA);, f* O1 f( L8 _. N8 R9 n' v( [# p
- WiFi.hostname("Sparkle");3 S3 Z' A7 B [' |
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ p' `8 k- M( k- o: ]$ M - int tryNum = 15;! }# p/ \+ k. b' k) c4 J
- Serial.print("Connect WiFi");4 d6 Q# D5 R5 Y
- while (WiFiMulti.run() != WL_CONNECTED) {
% ~3 e4 M* q" `8 X6 w - digitalWrite(2,0);) b4 o) [8 v& L H
- delay(200);4 z! q8 E7 Y8 R* l! l
- digitalWrite(2,1);
0 I% o% C; M0 |4 c/ g$ b+ O - delay(300);
1 j* h& R# Q/ ?+ {/ I/ t - Serial.print(".");3 g: w& b9 t; K( H
- tryNum--;
9 c" u& L4 R8 _) }! a( d - if (tryNum == 0) {$ O" O6 ^0 P1 k8 `! e3 S5 w
- // 1min. v4 r4 M! S! {2 j$ D
- // ESP.deepSleep(60e6);7 B& v7 [. e# f8 K, y
- ESP.deepSleep(0);
$ p7 q' W8 l& k9 z: r O+ p' [! e - }; d9 i$ T) q8 u+ J: Y& q8 @
- }
' J2 q- I( O$ C9 \7 r - Serial.print("\r\n");* J/ ?5 |9 O b
- digitalWrite(2,1);- N2 N! f3 _6 ?6 i! H
- Serial.print("IP address : ");8 x' R' _- [- @* u$ y
- Serial.println(WiFi.localIP());) A( C% t4 [5 t
- server.on("/", HTTP_GET, [](){4 q% s4 o" f3 K+ U' n% ]
- server.sendHeader("Connection", "close");
9 a- X3 h7 ]: z: A/ T+ r6 Q - server.send(200, "text/html", serverIndex);! h! a4 a' n/ p) L! e
- });/ M. J/ |4 M3 M5 ~1 `: D* t. b
- server.on("/update", HTTP_POST, [](){
; V7 p( x* N0 @# g) \! Q/ P - server.sendHeader("Connection", "close");6 Z* {2 D' Q9 K
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
l9 o$ x- |! v$ s/ A9 G. z3 N% | - ESP.restart();! k$ T F1 Z+ \4 H) C4 m
- },[](){
* F, r+ T4 i x5 a - HTTPUpload& upload = server.upload();4 K1 j, R/ u& n9 r6 u
- if(upload.status == UPLOAD_FILE_START){
$ z8 D" \ h" G7 w - Serial.setDebugOutput(true); ?& ~4 [8 _( Q* ?
- Serial.printf("Update: %s\n", upload.filename.c_str());; C7 B& K$ J+ O0 i% C/ K% ?9 d) F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- ]6 Y, M- l6 [% X ~- k3 M( G - if(!Update.begin(maxSketchSpace)){$ y; N$ G9 N4 V$ @# M" @
- Update.printError(Serial);1 {, h" S1 q( }+ H1 l) b
- }# w/ H1 W. e' m: w+ J! q
- } else if(upload.status == UPLOAD_FILE_WRITE){$ N* G; ?6 u$ d6 R- s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, y: j( k) [3 I) y( w8 W - Update.printError(Serial);% o7 f' e2 n0 b( t( A( Y6 T0 W
- }
& a0 l' A7 d3 @' `2 Q7 N# K2 p - } else if(upload.status == UPLOAD_FILE_END){
- c- ?7 B, x4 ^6 Y) A - if(Update.end(true)){+ \9 J/ C; ~. i! ~# y
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( _1 T+ \3 }: P! Y7 m - } else {
( V3 u5 D' Q2 _8 [" }' ] - Update.printError(Serial);
3 D S$ y# c3 _/ |# H9 T' G - }5 w& d: |, ? @7 Z, V
- Serial.setDebugOutput(false);
5 h- N" E* `; B. t# a3 O3 ^8 `4 o - }
- K( d) `6 e% P( [( V! M: a - yield();: Z& k. \6 g. n5 S8 N
- });
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- digitalWrite(2,0);
/ i7 q& D4 |8 ^! x4 h+ s, Q, W - mainAction();
; g6 `* v, y* m; N - if (digitalRead(0)){. o7 m/ M) i" x$ T' ^# {* N
- ESP.deepSleep(0);
. W6 R4 |' Y, ?3 k. K! c+ H8 O8 s - } else {
8 I. [& e! o1 B5 n - server.begin();+ C5 c& l% U' ^0 B8 F
- }
# X" i$ _- _8 Q0 I9 D! O - }, q$ U3 G$ R0 }' h3 u
- void loop() {% m8 i$ x3 n( z9 g
- server.handleClient();! H. P1 }7 S7 g: q
- delay(1); A1 k* s; n/ t, i2 V1 W+ l& o
- }9 z" Y* d8 m+ ]; g' m
- String doGet(String url){
6 Q* z; _3 S/ Y3 g1 D7 M# q* t - if ((WiFiMulti.run() == WL_CONNECTED)) {
6 A5 I S0 u+ d. i$ S1 H - HTTPClient http;9 D3 p2 `# K3 C5 j& V- ^. d
- Serial.println("[HTTP] begin...");
% l r# g3 o9 E2 } - if (url.startsWith("https")) {5 I* l& X' m8 r i: @# l
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ Z- q6 h9 M- ~ T8 o& ~
- } else {% ~5 {' ^( l( H7 B9 F0 R0 _: q
- http.begin(url);: B1 |7 e8 y1 O- f
- }* I1 y0 W7 _! E9 L! i- ~2 S) I8 x
- Serial.println("[HTTP] GET...");
, F& M$ T! @. k9 V( d. T% ` - int httpCode = http.GET();6 f( Y- F2 c' Z: u% Q
- if (httpCode > 0) {
: W# `" s, i7 |5 d; w - Serial.printf("[HTTP] code: %d\n", httpCode);2 j& V. T2 Z: v, r( D3 j
- if (httpCode == HTTP_CODE_OK) {& x* p! K/ n6 R% Q2 {2 J+ e; A
- String payload = http.getString();' U+ ~7 r% f1 Y
- Serial.println(payload);
4 b' U) D7 b" O6 C# t+ ? j4 t; r9 K - Serial.print("\r\n");% B9 W1 F3 P/ B8 A
- return payload;+ z1 l8 I+ e3 N2 U3 l7 M5 b/ p
- }* T- ?* d9 n: N: O
- } else {8 a5 }" V8 ]. O' n+ b
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! Z# V1 ?) t' z* n - http.errorToString(httpCode).c_str());
# v+ w+ f& i7 ?: ]9 o - }
" I% N4 q- e4 l( a# c! B - http.end();
5 J# ?+ u4 X- S3 o - return "";9 \; s5 D. N! y3 x2 v
- }
6 C7 h/ t$ u5 M2 t - }
3 I0 Q; ?- |9 |- m - void mainAction() {
7 q; O! X: j8 B - // 发送请求$ o# N$ k- V( o: Z, D9 G
- doGet("http://google.cn");
; a/ C: o2 D) {8 z" j+ T, m - }
% F* s8 E9 ?/ d h, ]6 F
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