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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)* a1 E, k8 V! m+ M8 }7 J7 X
- #include <ESP8266HTTPClient.h>
% x( D' }% c0 K. J$ w5 W$ r: r - #include <ESP8266WiFi.h>% ~9 b* n4 |2 B. \" {
- #include <ESP8266WiFiMulti.h>' R" f2 |# z, ^& T
- #include <ESP8266WebServer.h>
, L8 i% k. c8 S - #include <arduino.h>7 \6 b1 T9 T9 G) E7 e( z6 l
- ESP8266WiFiMulti WiFiMulti;
5 o! U4 B8 f- E4 h6 E( L" @; { - ESP8266WebServer server(80);
+ ]2 x- w. F' V3 [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% s1 {" Y# L) @0 s
- ADC_MODE(ADC_VCC);
% N+ B$ y5 T- ` e& C - void setup() {9 T( I+ ]( Q4 Y. [$ l
- Serial.begin(115200);
+ N& }" S% e* |2 l4 O - Serial.print("\r\n\n");: ?9 b8 o; i5 g# \0 v8 O
- pinMode(2,OUTPUT);7 P: n6 B6 B5 L1 ] Z% z- n
- // WIFI
8 n3 F5 b' m9 E; a- @! [ - WiFi.mode(WIFI_STA);4 V2 e' @/ h7 ?% }) Y2 U* ~
- WiFi.hostname("Sparkle");
3 y4 O0 V0 | n. G6 [* [+ s - WiFiMulti.addAP("wifi ssid", "wifi password");
4 u" W9 W& `( K2 ?+ f- ` - int tryNum = 15;
" v. S3 g, S- u* X: N5 G: }( p5 V - Serial.print("Connect WiFi");
" }- C. A6 V% H, N( \1 g* j - while (WiFiMulti.run() != WL_CONNECTED) {: i7 M2 Y# r$ Z1 e9 s# N- U0 ?) d2 W) d
- digitalWrite(2,0);
6 u2 A, e8 y E4 n9 u# A - delay(200);
x* ]3 y7 K& G7 l- z9 u! l( M/ P% w - digitalWrite(2,1);
+ s- z" J4 [# o7 j) [4 o - delay(300);. g) m8 w) u! j# i# T
- Serial.print(".");! p9 y* w; A, p6 [) @8 `4 G
- tryNum--;
4 h, A2 Q2 N8 ? p* o& h5 u - if (tryNum == 0) { l; o: f8 c$ n. F2 e, e5 V6 {+ x
- // 1min
8 r* N5 H$ o$ I" q5 I# r8 v/ b - // ESP.deepSleep(60e6);$ j! D( a6 F L; f- U
- ESP.deepSleep(0);
0 Q% R2 Z9 z' |2 u# {0 F; @8 ? - }
; a. s/ k9 v" L, W; H$ E - }2 J+ x5 l$ ~" \% w! f( X
- Serial.print("\r\n");
1 t3 b$ _5 P: k* C - digitalWrite(2,1);8 `7 d) o) p, X# J& g
- Serial.print("IP address : ");3 a/ E. h. U! Q) Z4 M
- Serial.println(WiFi.localIP());! x2 X- H5 W) i* }' j
- server.on("/", HTTP_GET, [](){# K' J/ E1 o/ p% _. `: r
- server.sendHeader("Connection", "close");
4 F% }2 q7 m8 k! A* T( c! O6 Z - server.send(200, "text/html", serverIndex);
) k0 l9 a# g7 ]% X$ m- o) J f8 y - });
4 w/ X6 W9 W6 `6 [, m, U - server.on("/update", HTTP_POST, [](){
0 u$ c% z" `9 q' [8 H - server.sendHeader("Connection", "close");/ B' N' K3 M: m9 b( L y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK"); }; E8 ~. m2 [' z" B6 Z6 ?
- ESP.restart();, c% R, @4 s7 V' U3 \( L
- },[](){) \4 f8 [3 X* w0 P
- HTTPUpload& upload = server.upload();
0 ]- l& m8 n2 n - if(upload.status == UPLOAD_FILE_START){
/ p+ ~3 g2 B. e$ E - Serial.setDebugOutput(true);7 }3 p! Q6 i$ g' i1 F. j
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 ]2 y0 T& G, e+ V - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 e. s2 }8 q& a/ x
- if(!Update.begin(maxSketchSpace)){/ r# G+ N* ^& v" @8 V% ]- R2 g
- Update.printError(Serial);" [* v. Z, Q0 b* b% ]* h3 d
- }
' F2 T- G" R7 q7 W - } else if(upload.status == UPLOAD_FILE_WRITE){+ d! A- ]) `. i$ s+ ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& U9 r" B" ?9 ^
- Update.printError(Serial);% I6 f5 q; ]9 V" b, w
- }
$ H; {% A9 Z- p3 A/ |6 r' I - } else if(upload.status == UPLOAD_FILE_END){
) T+ w8 g- b* R. ` - if(Update.end(true)){
: ^. i6 u( ~+ \% u0 u' U - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& o) P7 W2 P8 b9 `+ V
- } else {
, r) a3 _9 E' z, ^2 u% C$ S - Update.printError(Serial);
* j9 ? j @$ p - }
0 n; M4 m/ C5 y2 _" m - Serial.setDebugOutput(false);
, [' Y# N' K" `- d/ x( H - }
* C7 w V" \: S. I. e1 S - yield();
( C8 G) a- f! q1 l - });$ e( f0 k0 O. U, V
-
4 s! e9 W% f' m& ]& X. W - digitalWrite(2,0);$ \8 m( N) w H6 `% b8 @
- mainAction();- H7 z0 P, F2 k) Q$ B
- if (digitalRead(0)){$ k1 Q7 h, V0 w v
- ESP.deepSleep(0);' ]& {/ V. @) o: {4 b
- } else {
' p6 x! [% _4 c' ?9 N' X - server.begin();7 |" F; N' i, p0 _
- }8 U% c% B3 D: W) J/ ~( L
- }
5 D- d4 Z$ d, B; [& Q/ N: I0 l - void loop() {
" E3 c9 H) L4 ~4 }. { - server.handleClient();
- v0 m9 s4 s$ n1 K- w - delay(1);3 X1 _! r' R: }( J9 h
- }; B2 Y6 c/ r3 `$ N7 g, d
- String doGet(String url){
5 n ?# X9 g% ^9 _; G1 q - if ((WiFiMulti.run() == WL_CONNECTED)) {, d5 J3 {: g) E$ Z- O: ?2 v
- HTTPClient http;
2 l$ @, H. |3 a" p/ k; @- P - Serial.println("[HTTP] begin...");* H! r9 s: B5 ?' n+ d
- if (url.startsWith("https")) {+ |' w+ c( }4 p0 [/ X2 ~3 |& M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 s: q2 l, e+ X" S4 T
- } else {
7 e& L! ~' C5 A( ] - http.begin(url);, h9 T" r4 _4 r6 j
- }
. \" z `4 Z; |8 m$ s - Serial.println("[HTTP] GET...");8 W+ L7 |6 Z. S' A
- int httpCode = http.GET();* H; o9 D) E8 v9 n. r: L x9 ?
- if (httpCode > 0) {
2 |% l9 s2 K) c z8 E3 b - Serial.printf("[HTTP] code: %d\n", httpCode);
+ c: J' a3 S( F& e" P- w% j - if (httpCode == HTTP_CODE_OK) {
, H+ f6 x$ [4 [" @ V2 b; q - String payload = http.getString();
; s2 ?; B& q W: d* E/ ^ t - Serial.println(payload);4 ?$ X" N; H+ @* k* Y
- Serial.print("\r\n"); q& g) ~# s( k: k- X
- return payload;
* F0 ^9 O3 c8 N$ U+ u# L4 }3 y - }
4 I. K+ J) N9 b* o _ - } else {" `& l9 h! U& o+ n7 ?# k) L& f
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ A3 u1 p6 }5 y' L4 t9 E
- http.errorToString(httpCode).c_str());' {/ }" ?' A$ I$ ]! C0 s% A8 I
- }
& p! k1 C3 l) Y - http.end();
* J9 I9 h) R4 F7 C - return "";
* C& c$ |- e. S. r) ? - }0 E9 u0 H# L$ _" ~# F3 y
- }
) U: \: C" w7 _ \ Q. ?$ I! { - void mainAction() {
. X( c* Q4 ~! q/ m" }; o - // 发送请求1 s0 F7 z& C2 J0 _' p* j1 r
- doGet("http://google.cn");
9 @8 Q8 o& i# c - }
5 E3 V9 @6 y4 @- V8 [/ z
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