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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)4 T# W/ P# W& G# K% O
- #include <ESP8266HTTPClient.h>
9 N* G5 e( Z) Z# W1 ^ - #include <ESP8266WiFi.h>
0 P7 {, Q2 U& Z) j) s8 K% B0 z2 w - #include <ESP8266WiFiMulti.h>
' {3 ^. C, [/ N- C2 Q - #include <ESP8266WebServer.h>* d, J0 Z3 u' I
- #include <arduino.h>6 Z5 G6 }; `4 R
- ESP8266WiFiMulti WiFiMulti;" `; H5 `! m, R* x
- ESP8266WebServer server(80);
6 w4 {5 }" V# I7 s P' V! l - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";/ P+ M" w( W8 y( z- \" I* l' Q
- ADC_MODE(ADC_VCC);
( d) h! C8 V/ e7 {7 G9 ? - void setup() {3 s4 a5 Y. S2 z
- Serial.begin(115200);
" M+ Z0 A" G8 l" Y7 g6 X ] - Serial.print("\r\n\n");
! a, ]+ u3 ^* t% v - pinMode(2,OUTPUT);* ?2 b4 e) g9 X5 P! D
- // WIFI5 _1 ~9 m" c. V5 H: Y4 g2 j
- WiFi.mode(WIFI_STA);" U. G" g' e2 E+ s
- WiFi.hostname("Sparkle");
5 a1 s! W7 Y$ H; Y! q$ l! p0 I - WiFiMulti.addAP("wifi ssid", "wifi password");
' X* W% k3 K$ M+ p1 M! ^. x- n - int tryNum = 15;
) o" ?3 [! T3 n4 u7 a; @ - Serial.print("Connect WiFi");9 Q, ?, X8 L8 |, X( v1 m) I9 \
- while (WiFiMulti.run() != WL_CONNECTED) {
, C8 k7 q1 B* f% w" {" |4 E - digitalWrite(2,0);/ I* i& ?1 N1 L5 H$ v
- delay(200);" W1 y/ G0 \( o# G) Y" T* D
- digitalWrite(2,1);, A" ^. P G1 v- b0 v
- delay(300);- K/ k/ h. |, o
- Serial.print(".");& v- O0 ]" i! f- [) e2 f
- tryNum--;
4 C" d" a7 p9 j/ N& t - if (tryNum == 0) {# H/ P3 t/ U# Q5 ~) y
- // 1min
5 A/ c4 H1 P; z) K - // ESP.deepSleep(60e6);' o; E; I- `* ?* }* z0 @1 W- e/ k
- ESP.deepSleep(0);
+ f$ X& r2 m, g# Y" z( S4 p - }0 s* Y" @: a. u3 c5 C9 P4 q
- }. M* `5 D; W, N8 V2 _
- Serial.print("\r\n"); h: G& @& b+ h" T6 W, j0 C
- digitalWrite(2,1);
9 E* R9 l. K4 @9 m8 f - Serial.print("IP address : ");
! m7 f9 O( R# d d& g - Serial.println(WiFi.localIP());0 J6 Q: k' z* Y
- server.on("/", HTTP_GET, [](){9 A9 ?4 {: a/ R
- server.sendHeader("Connection", "close");( \. e# v& T8 S2 [
- server.send(200, "text/html", serverIndex);
7 I% i3 j$ [* J" P/ Q7 k - });
; P' k0 v7 p5 B0 A4 p8 W- Z4 } | - server.on("/update", HTTP_POST, [](){
5 q) x3 j$ _5 ]( l5 v7 E9 D - server.sendHeader("Connection", "close");! k" Y& U' f# r! w7 C
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 y* j3 p& R2 B; G t" G7 K
- ESP.restart();
6 v% l6 l1 V% `2 A# [& c - },[](){; k; K$ ^" K4 m1 l1 z
- HTTPUpload& upload = server.upload();5 D- O& r; k' b1 k% Y; U4 I* `; F
- if(upload.status == UPLOAD_FILE_START){
" F# P2 n& q( \ r; v, W" ?9 z - Serial.setDebugOutput(true);+ F" e: F" o# |( a1 K4 F
- Serial.printf("Update: %s\n", upload.filename.c_str());
! C8 k8 O+ \, v- {2 \/ X9 f t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ r: c/ I) N4 g1 G0 {+ r" z - if(!Update.begin(maxSketchSpace)){% x6 J( ~+ y( J* w0 B. B6 x
- Update.printError(Serial);' F2 X3 |- n3 P$ U' l3 O
- }" }# q2 b& W% v v
- } else if(upload.status == UPLOAD_FILE_WRITE){
' I! F; k2 N s: J, u( D3 W - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 W% Z1 q/ q# W. D' C5 d
- Update.printError(Serial);
) t# G6 n; l# E4 M( j4 S/ n - }
0 x; J8 Y1 H* _4 ] - } else if(upload.status == UPLOAD_FILE_END){; L/ v3 _+ h4 L8 d6 T9 t
- if(Update.end(true)){* d' \. d4 |3 K( n0 w
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 ?- Y# Y) z. c8 _ - } else {
, O# F& a! c/ {! H9 L - Update.printError(Serial);
1 h. l/ x$ X9 W+ a) a y - }
9 r+ Z* C# P# h: R* r - Serial.setDebugOutput(false);2 p$ ]* O" n) X U+ s/ C. r
- }7 k7 r* d$ e1 M7 c' q; \7 ]
- yield();" Z( k0 B) ~* @" y; _4 ^, s
- });# G- E8 }. ?9 h5 e1 U! X
- & q* t. b, L5 M9 g) v; X
- digitalWrite(2,0);3 ~# l& _- S) e
- mainAction();
- P+ a/ m/ u) g+ M) N! o# G9 a - if (digitalRead(0)){
5 W m2 v+ X: W# H* w9 { - ESP.deepSleep(0);
6 ?, v" [$ }1 c% ^" C4 }+ Y - } else {9 M: V8 |2 L2 H: T! T6 O
- server.begin();& G! |! w% O' h: z( ]
- }
1 P& R5 W6 I+ G2 o - }$ t# F; |2 h& }/ s; a7 w8 o
- void loop() {8 k( h# c+ i; L
- server.handleClient();
: W# ]1 y/ z2 i V% n- h - delay(1);* o: S: h1 ?( k+ w/ i" y( p: h
- }7 c/ q! P. f/ n3 M6 `! J; ^3 U1 \! ~
- String doGet(String url){
' I) x0 ^/ ~- a0 J1 G - if ((WiFiMulti.run() == WL_CONNECTED)) {( V; g) G+ [: r1 j
- HTTPClient http;
$ |$ m2 E7 X- G+ G Q - Serial.println("[HTTP] begin...");
/ r/ p1 q, K/ r4 l- M - if (url.startsWith("https")) {1 R' [! \( p4 E P4 S
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 f9 z( J8 S& e! a1 a
- } else {
0 M7 o4 _3 \3 U - http.begin(url);
9 k, Q& h' {3 t5 |! X/ w# V/ s0 R - }
2 {1 A2 N1 n9 S: N - Serial.println("[HTTP] GET...");# g5 J( h' D$ h6 Y6 s' q/ N
- int httpCode = http.GET();
! o% X4 f( Y! L# I5 w: v1 S& H - if (httpCode > 0) {
, }8 p) I u9 h - Serial.printf("[HTTP] code: %d\n", httpCode);
4 j. d. B0 N4 n2 b+ I/ w" R# g% D - if (httpCode == HTTP_CODE_OK) {5 C0 w: k9 |" Y+ w8 z9 B3 u8 v
- String payload = http.getString();
q; M6 U6 X& G/ U+ m# K - Serial.println(payload);( ?. t. j3 F' e1 }' I7 I
- Serial.print("\r\n");+ b3 B1 j8 x' i, @
- return payload;; E+ p6 }0 x4 K) `
- }
+ Z2 j) B9 `# W6 c4 v( o& j - } else {
. y/ j r/ W. u0 W - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ V2 o+ ?, X' f4 N/ D - http.errorToString(httpCode).c_str());
3 O+ D+ d# X3 F8 E1 h! G - }( P# d9 M1 c( E+ h+ }0 s
- http.end();. x/ V! }' M0 A, [
- return "";( E! H# l" z; J& S
- }+ E5 C' S! o% V; `1 c' S
- }
- Q/ u3 ~" z" z - void mainAction() {
* P8 w+ I+ ~9 r8 h - // 发送请求
: t- a) G1 b9 K) K6 d1 I - doGet("http://google.cn");' `& } W: c' d8 y) r. U
- }
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