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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)
! d9 Q, t! i% V% p2 l1 ~- #include <ESP8266HTTPClient.h>7 |2 j( t u0 O, W2 C! r7 N
- #include <ESP8266WiFi.h>
& A, r. ? h1 @- T" F5 s- c - #include <ESP8266WiFiMulti.h>
) I5 T2 S0 Q/ p7 N" H& S - #include <ESP8266WebServer.h>
: F# x' X( B( q# w - #include <arduino.h>( W1 v: n6 W2 q% T. P# Q1 @( e# M
- ESP8266WiFiMulti WiFiMulti;( m4 n# p* X S/ n* s% X+ ], i
- ESP8266WebServer server(80);
$ ~+ E& h! d/ W; R4 T( K1 s, [3 _ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
( _5 \6 S, ?) g1 o* d# j - ADC_MODE(ADC_VCC);
/ y: q( @$ Y3 g - void setup() {0 d) E1 j8 r) N+ X, {# ~" M" g) j
- Serial.begin(115200);
, d2 d7 _- w# v+ N/ D, n3 O6 L - Serial.print("\r\n\n");
3 a- U, |0 o1 h( q - pinMode(2,OUTPUT);' Y! ?" h0 Z, d% G: D1 y! J
- // WIFI9 L$ i o& U! ?1 }2 u0 y2 N
- WiFi.mode(WIFI_STA);$ s& v' q+ I- g. g. a
- WiFi.hostname("Sparkle");& G1 n C# ^1 D$ a6 i2 u3 @
- WiFiMulti.addAP("wifi ssid", "wifi password");
" m/ r, |* p; m! I/ A - int tryNum = 15;% S3 ]- G% h0 W
- Serial.print("Connect WiFi");+ R9 [& F1 P8 q: ]
- while (WiFiMulti.run() != WL_CONNECTED) {) x" W2 I! A, c" w* `# ~) Z
- digitalWrite(2,0);' Q' |: \. n$ p$ k
- delay(200);
* J% I; D! t: c - digitalWrite(2,1);( G& A% T) N, _
- delay(300);
/ \4 O; n- W" _! D - Serial.print(".");6 J2 Z$ n/ Q+ w; e3 z
- tryNum--;
5 k6 a! w4 ] h' l7 q - if (tryNum == 0) {% ]* F. w# D/ J1 R9 r& X% W8 K0 u
- // 1min
7 Z" O* p" u5 W' G) F$ x# k! g - // ESP.deepSleep(60e6);
" V5 ]; R2 z1 m - ESP.deepSleep(0);
, r9 V+ a! q2 |6 C - }
+ J+ `: f% V- J' j- _" n% l - }7 m, @5 Z0 Q% N- h. {
- Serial.print("\r\n");
' {% [* x4 r, B - digitalWrite(2,1);' X$ R/ t5 i. X* l
- Serial.print("IP address : ");" \5 J4 t4 N+ E: n$ D, L
- Serial.println(WiFi.localIP());
% \, Y( a& a" q! U% J - server.on("/", HTTP_GET, [](){
8 C& _4 C u; @* q2 s1 A2 E ^ - server.sendHeader("Connection", "close");
4 ?# Q% ~7 u' m - server.send(200, "text/html", serverIndex);
, }) b+ @" Z: x - });
7 t$ K# M, h+ U, Z, W A - server.on("/update", HTTP_POST, [](){4 J, q+ J6 Q7 K3 m
- server.sendHeader("Connection", "close");
1 j! v4 e8 Y9 u - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# |1 Q" I7 t: t7 V8 u4 l
- ESP.restart();) K8 I6 d8 Q' y1 \
- },[](){
# g6 b, b' r* u9 |$ ]1 H - HTTPUpload& upload = server.upload();
/ R; S+ T, } o% e, W) v+ d - if(upload.status == UPLOAD_FILE_START){9 m* e# h% F! K4 W" M' G
- Serial.setDebugOutput(true);% m7 q }6 J7 x0 g; i& s' J( x
- Serial.printf("Update: %s\n", upload.filename.c_str());
* g' t$ _5 |' v. o. H5 m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: H2 k& X$ P" T7 Q. B
- if(!Update.begin(maxSketchSpace)){, S1 Z& Q( z( ]% W
- Update.printError(Serial);5 P# A9 Q# ]# o$ v3 A
- } f# u! k* J4 X6 Q$ R$ d$ x
- } else if(upload.status == UPLOAD_FILE_WRITE){4 ]0 o% S! V" H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 m5 I- a6 a. |# d* C: {
- Update.printError(Serial);
3 G' J% R( T" o/ q5 M4 o3 b1 e' n3 _ - }
! E& {4 f8 n9 v - } else if(upload.status == UPLOAD_FILE_END){, A# }7 n: W9 J) Q7 m
- if(Update.end(true)){
& T* s2 s! G% R: q& j$ K - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, m! S/ e' b, z7 Y
- } else {; L) F+ B9 \0 a
- Update.printError(Serial);. R1 ^% Y C- f% o$ m
- }
0 b, Q/ }1 S. m7 H s& i7 K% N6 E - Serial.setDebugOutput(false);
* g3 @% M& u+ y; P$ I - }$ P8 ]- |6 u: S
- yield();
# U9 T: r: `( g/ v) | - });& w! g2 W5 `: J/ V
- 0 Y8 \0 t/ @; Z7 ?8 q* W
- digitalWrite(2,0);
! j, _9 H! j- b- M - mainAction();
( P* e1 _/ J7 j5 e - if (digitalRead(0)){
4 t. V) z% E* f2 ^6 T - ESP.deepSleep(0);
; x. d- u6 W# X O4 N+ v* K9 s - } else {
6 X6 v9 y1 }2 {0 f4 l) ?& v5 O. T - server.begin();0 l. |- w6 X0 i9 L4 `
- }' g& s+ `7 r& L
- }
* h$ t5 L; K$ H - void loop() {
) a& J) K8 M2 N. E+ Y - server.handleClient();" @) x$ e, y) `, |2 i8 p
- delay(1);$ n+ b; |8 s' N& W! F2 R0 V
- }
$ O7 c% E* O* I: U) R* N' f1 g7 u - String doGet(String url){
2 ~- V' u; G: |) {; e - if ((WiFiMulti.run() == WL_CONNECTED)) {# y W+ j2 M0 [
- HTTPClient http;4 A0 }: W0 P0 P" E4 @. {6 l
- Serial.println("[HTTP] begin...");
3 k; n3 b# I& O: b - if (url.startsWith("https")) {
; i. l/ a9 ^6 @" r6 I' s- x3 Y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");$ w4 V5 `2 x% H2 }6 V
- } else {
3 p$ L5 L9 N& e - http.begin(url);
8 ~1 S% b5 h" N3 Y2 ^$ i - }
5 u( E6 H- P. e+ ]& g6 u9 X' x - Serial.println("[HTTP] GET...");" e. v' U9 P2 s$ p7 j0 p
- int httpCode = http.GET();
: y9 | b. F+ F - if (httpCode > 0) {6 f4 z9 o" h( \" o- U# W& }
- Serial.printf("[HTTP] code: %d\n", httpCode);( ~" Y0 ^! x. `& [
- if (httpCode == HTTP_CODE_OK) {
" M+ n4 M- v3 y' R L - String payload = http.getString();$ r/ m& }- @7 \& D2 r
- Serial.println(payload);& u2 ~1 f8 b2 n M
- Serial.print("\r\n");- E7 q6 d/ u% O; \
- return payload;$ o3 W7 g' p3 A: w& H3 Q1 U6 ^
- }9 T1 c7 B) n7 f" w8 P5 A
- } else {9 S( W$ n& T2 Y; b
- Serial.printf("[HTTP] GET... failed, error: %s\n",3 C8 ]% F, V* d; }
- http.errorToString(httpCode).c_str());8 [/ T4 [7 f5 w9 |6 ~( w* N: S9 b
- }
) k8 v" r9 k* u# n1 o( l, L( O - http.end();' r& `# Q0 f# y9 m$ j
- return "";$ d% @9 `( I7 R$ |: s, g+ l0 e
- }
& b$ ?( ?' T: |6 t- M - }
) _1 ~0 L, A. i6 ^+ T4 u6 f/ L - void mainAction() {
+ j9 _1 Y/ t' n& K+ {5 A Q7 { - // 发送请求# M0 D* ?1 z3 `5 z" I' a8 ~3 q! q
- doGet("http://google.cn");
% y a) X! k- \) x' N - }
6 r( n" Z( p: D. r- I; e% l
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