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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)
/ }: w- j3 C1 J- #include <ESP8266HTTPClient.h>
" V0 K" C ]1 X9 K. K - #include <ESP8266WiFi.h>
0 B. \ h# _$ U' g2 O - #include <ESP8266WiFiMulti.h>
4 Q" Z: u) ^. u! A6 j$ n- K3 A - #include <ESP8266WebServer.h>+ Z/ C$ @2 e- r) b% P
- #include <arduino.h>
2 ^) n: r% ]' Z9 b - ESP8266WiFiMulti WiFiMulti;
3 z I# o" \8 B9 p9 j - ESP8266WebServer server(80);
9 B8 T' |% [' X$ ]5 J - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. I7 I! O' C& e8 U - ADC_MODE(ADC_VCC);9 X1 U6 Y$ N5 L+ d7 W6 j
- void setup() {
- b7 ?+ A, T! k$ l6 v- P _ - Serial.begin(115200);
1 ?6 S0 Z$ ~9 I* P1 W - Serial.print("\r\n\n");: U8 A& p3 a, w- g+ [
- pinMode(2,OUTPUT);
; J7 u* }5 x$ M1 |/ A# o; z( X6 s6 { - // WIFI: Q j& v! P5 e8 n
- WiFi.mode(WIFI_STA);
* \* v) y$ R$ O" ~& g8 f - WiFi.hostname("Sparkle");; b) _* Z1 ^+ y* K
- WiFiMulti.addAP("wifi ssid", "wifi password");
+ p7 c$ }0 {& A9 c( z. a* J$ [ - int tryNum = 15;1 b0 L9 |' j( V4 P% G, q) w3 x
- Serial.print("Connect WiFi");4 b* h5 H: r. a' ~- c
- while (WiFiMulti.run() != WL_CONNECTED) {$ S: u, v8 \/ c: l' Q8 }5 Z
- digitalWrite(2,0);
3 g: N( ^1 V0 z1 k4 M3 `" ^6 l - delay(200);
7 x3 g( k' j6 y1 g4 a4 C' ^( Z - digitalWrite(2,1);
) \" T+ C n9 `) f, y+ Y - delay(300);3 Q: P4 D5 p/ c* i( j6 D% _
- Serial.print(".");7 D# U5 [( U P, I7 ?2 n# j# G) Y- [) T
- tryNum--;0 o$ s9 B7 L% X4 ~7 Q
- if (tryNum == 0) {/ o5 W# l# \2 d
- // 1min5 x# {( V& s5 K4 S+ {: ~" J' `8 n
- // ESP.deepSleep(60e6);, s z8 E* V7 z" j- D% F
- ESP.deepSleep(0);
9 p" z* Q" v, e; y; B - }
4 Y; z8 A( X, i7 w4 K' X. v" ]9 Q - }9 A7 g5 o, d N
- Serial.print("\r\n");
" T7 O0 U3 y) E - digitalWrite(2,1);: |3 z2 Q# p* u0 s
- Serial.print("IP address : ");% V1 l% W/ `# b0 O7 t: Q4 T
- Serial.println(WiFi.localIP());7 q- ~5 V& ~5 H. N- S/ O
- server.on("/", HTTP_GET, [](){4 Y9 z$ e5 B w# _
- server.sendHeader("Connection", "close");
% a6 I' F; v9 S - server.send(200, "text/html", serverIndex);* a$ X( J& x; J- n0 h v
- });
6 u" [: O$ J. f3 k9 i5 V0 o% E - server.on("/update", HTTP_POST, [](){! p/ y0 X1 a, a) y* f
- server.sendHeader("Connection", "close");7 f% W L2 _+ c. l$ ]$ M- {6 X
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 D, i7 p% F; u: P# F" r2 M! b
- ESP.restart();, X% z1 ]4 ?5 T# @ E4 O4 U
- },[](){
/ a3 t' \. b7 K5 L% } - HTTPUpload& upload = server.upload();3 N5 n/ \ t- Z" Z, g: n' |
- if(upload.status == UPLOAD_FILE_START){2 U! W# x( @1 b" q5 t5 V
- Serial.setDebugOutput(true);
& V) ?$ y; e4 m m( j8 \ - Serial.printf("Update: %s\n", upload.filename.c_str());% s0 ]; J! T, X7 F) z3 z" a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
$ }8 v* I/ H* C% h: ?& ]/ A0 C - if(!Update.begin(maxSketchSpace)){
* E* I; P+ ?; ` - Update.printError(Serial);
0 n3 Y1 C- |! y6 K$ {) l - }
* d' ]: C8 H+ T8 g - } else if(upload.status == UPLOAD_FILE_WRITE){
4 S0 b' [1 x+ P: F1 m9 t/ t0 x - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* w2 B/ Z: P {# @% X( T
- Update.printError(Serial);
3 L1 a4 A; h% b - }
; S1 O7 }' e0 v& {, @ - } else if(upload.status == UPLOAD_FILE_END){* F5 R& e* |) Y# F
- if(Update.end(true)){
6 H q( X/ Y& h6 t: ^" I' W0 H0 O - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( i9 y7 a6 M! {, ~; W O6 G - } else {7 p/ p4 w; a% B- x G* t
- Update.printError(Serial);
5 f. H& R& v8 @ - }
) |8 i# F! }; A; n1 S* ?& e0 I - Serial.setDebugOutput(false);
3 l* }# {* h4 S! R3 a) x+ @ - }
- j# l( T) h) Q - yield();
$ S/ K& {& g* p - });
2 _4 `+ }1 m1 ^ - 2 d9 ^, }6 S" z. Z2 @4 p) h
- digitalWrite(2,0); k6 Z$ _0 Y, p! @
- mainAction();) s l& e( M& M4 P4 N# `4 D
- if (digitalRead(0)){
. ^3 f0 X% t' |; N - ESP.deepSleep(0);" i- c, P* R! ^
- } else {
D- B2 E* v8 Y7 \. w) e - server.begin();) @8 d3 {/ ^1 ~/ q$ s5 E3 W
- }1 V, Q k! ?. p8 A1 ^+ I" M: r
- }
. \/ \. E& l$ W - void loop() {
; b# p: O# j) v2 ~; ] - server.handleClient();
, r/ n1 g$ Q" s$ g$ N - delay(1); i; h/ \' i7 p
- }
w7 i9 F, h7 W - String doGet(String url){- ]. E6 \, A" i! _
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- `8 D" _3 D U* M - HTTPClient http;
3 f5 ^, ]# Q: z - Serial.println("[HTTP] begin...");
1 j# @ C4 ?0 m2 q8 l! b; b - if (url.startsWith("https")) {1 x. f! ]5 m7 a8 |8 T; t0 d
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ t) j: Y: }. z' ]& C6 R
- } else {
. ]+ W+ c. n2 j' F* _9 @2 [ - http.begin(url);
# M1 e; q( Y$ n5 j- z8 ^# s* L) U - }
Y u$ v( J3 D; W2 g7 k8 L - Serial.println("[HTTP] GET...");
$ w# ^% J/ ~: M- w% F, M: u5 Q7 @ - int httpCode = http.GET();
8 d5 y' \+ |/ E$ i6 v/ l - if (httpCode > 0) {
- {. v( s9 _5 {# b2 J7 ? - Serial.printf("[HTTP] code: %d\n", httpCode);
+ ? g3 Q6 D4 O - if (httpCode == HTTP_CODE_OK) {0 k3 l9 {, e% i5 Q* N+ G
- String payload = http.getString();
. a9 v, a5 \' w" ~0 w E" I - Serial.println(payload);/ u8 Q6 H: O' l8 G1 S( j2 K3 k
- Serial.print("\r\n");9 M/ d; X6 F6 @+ m0 w3 \: Z0 j
- return payload;
$ T$ ^. E3 W: m - }
R0 r7 I& u/ Q) J& ~# P( A3 ? - } else {
" {$ K; c! }, ?6 m* M5 M8 | - Serial.printf("[HTTP] GET... failed, error: %s\n",
$ U1 U: y3 G2 a( N7 z2 Y7 A8 X - http.errorToString(httpCode).c_str());
" k3 o: F: w' n - }
* Q' O% j: S4 x& j: F6 W - http.end();
) q- T+ l* ^0 _2 ~ S3 v1 J - return "";
2 F. t' r7 Y9 f" ?. y" H3 _ - }
; P. t& O$ [% O4 ]( h0 K - }
' U9 J- O, A1 u3 s0 T1 ?: f - void mainAction() {
, N% A, A# D0 {6 `& |/ s" O0 Z - // 发送请求
7 B1 R4 I/ r- [4 x$ g- X - doGet("http://google.cn");
0 G) @$ V) H8 D( ~ - }- R7 }9 g8 g) t- o5 |) ]5 M! _! R+ t
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