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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)
& ^) D- ?1 @' Z: M- #include <ESP8266HTTPClient.h>
( e0 Q( F- _) f - #include <ESP8266WiFi.h>
, b0 g, }+ L( ~6 { - #include <ESP8266WiFiMulti.h>
$ u) X8 f% x# m5 g Z; i - #include <ESP8266WebServer.h>
1 J$ R% m* z# c3 Z - #include <arduino.h>$ Q, v* ^- e; j. r
- ESP8266WiFiMulti WiFiMulti;9 ]/ J2 a/ w- ?) R; {0 J
- ESP8266WebServer server(80);' k" Q+ W( R3 ~
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. U! O' G' B; l5 B) u: A9 W - ADC_MODE(ADC_VCC); s3 v8 s2 v& [/ a2 t0 t
- void setup() {5 k6 w! W' p8 s4 G1 A5 s
- Serial.begin(115200);
& `3 \7 v) n9 Z+ N+ T - Serial.print("\r\n\n");8 v2 ?: | N1 P* R; O6 R
- pinMode(2,OUTPUT);4 `# G8 I5 d$ M! S
- // WIFI
) U- R2 O& ~8 [' Z2 k( A - WiFi.mode(WIFI_STA);
; b) l$ V7 X% x& z: D( O - WiFi.hostname("Sparkle");/ B/ X/ a9 i0 U
- WiFiMulti.addAP("wifi ssid", "wifi password");" a U; t5 M7 U/ u7 s* ?
- int tryNum = 15;
2 D5 b& m$ D* w# H$ a' g - Serial.print("Connect WiFi");/ y Q3 }& t0 J" O
- while (WiFiMulti.run() != WL_CONNECTED) {
0 |. {% U/ {* H& {$ _8 O+ P+ V - digitalWrite(2,0);
3 C% `. g5 M1 f6 Z/ } - delay(200);6 r3 E5 X, x' |; m1 l
- digitalWrite(2,1);1 x" s: R+ y! I& q% c0 t) M0 r2 F
- delay(300);4 J" R [ ~: b& A
- Serial.print(".");' R/ `3 `! O, s6 ?1 G' |
- tryNum--;) S" a; f- x5 A8 s, [4 J
- if (tryNum == 0) {% S4 S9 n! J5 @4 E K" l9 T8 M
- // 1min% s. b, g2 Y& S X8 a4 A
- // ESP.deepSleep(60e6);
6 K7 a, C* e8 ?# A# N" b4 K - ESP.deepSleep(0);
+ P$ E, k$ `& x+ K3 A5 ]: d; } - }
0 \& K7 _. t9 n/ Z4 @- q) x8 l - }$ Z' ]# _8 k4 C/ I* u+ W, P
- Serial.print("\r\n");
" c9 k3 X" F2 C! G6 p5 P - digitalWrite(2,1);
4 M( C7 t# J: W4 t - Serial.print("IP address : ");8 d" a# K. |& b& J1 g+ k5 [" y
- Serial.println(WiFi.localIP());& U, i0 V& O9 { p) ?; ]0 c2 W
- server.on("/", HTTP_GET, [](){
: X5 e; {: z- C: z4 I - server.sendHeader("Connection", "close");$ c- ^! r1 {9 j2 n
- server.send(200, "text/html", serverIndex);, K. J7 U! {1 ]: B O5 U( ]
- });
- q" G: ?' I4 g! J' x% w - server.on("/update", HTTP_POST, [](){; k8 I5 C5 Q3 g
- server.sendHeader("Connection", "close");; ?) K4 H) C' ?: G& Y; F
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 X6 R5 m2 I. } - ESP.restart();2 |0 l. f3 P! u" A
- },[](){8 W* R! I7 i+ W0 n
- HTTPUpload& upload = server.upload();# \* @9 r: v( N) B- I" N& a
- if(upload.status == UPLOAD_FILE_START){" R1 {# B5 ?% A( n0 i
- Serial.setDebugOutput(true);
6 O8 {+ m- }) c* D( G - Serial.printf("Update: %s\n", upload.filename.c_str());7 g( J/ L) o R9 I4 x6 F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;+ } z8 Z, J! G6 r- L8 E+ s
- if(!Update.begin(maxSketchSpace)){- i: \, R4 I+ t3 A# V) I# n1 o
- Update.printError(Serial);
3 G/ {4 V3 N* {4 @ C6 K - }
' [; b9 t& O: [0 U/ D$ G" |: H - } else if(upload.status == UPLOAD_FILE_WRITE){7 E& @1 P$ M; A3 ]( [5 y- ^. U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
* X; l& Z7 J$ `! I' n - Update.printError(Serial);) x0 d$ b% j& D! M p8 {$ \
- }
- X" B h5 O4 ^( Y) h: j - } else if(upload.status == UPLOAD_FILE_END){# D1 m t% K: j+ N
- if(Update.end(true)){7 p4 U4 ], ^2 ?' L
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 ?4 I! H* s) ?. Q - } else {
/ J% R* M6 `# `) A$ S! V - Update.printError(Serial);
3 y1 ^1 L0 B- H p4 D - }
^: j4 A5 D5 ^7 Z. `0 V) } - Serial.setDebugOutput(false);
& ?- I: T; T, J+ d3 k$ Z. M - }! `: \& Q0 C6 I( f
- yield();3 S1 F" M1 \' n* B4 J$ q/ J
- });
9 j( ]8 C, s1 C/ B3 A) s - % d" ^) q# v- Y8 i
- digitalWrite(2,0);, ] L( g/ |1 {4 p# U: Z
- mainAction();
/ X( N6 H# Q6 X$ ` - if (digitalRead(0)){. N4 H0 K2 @$ V8 G
- ESP.deepSleep(0);8 r }2 u2 l7 Q8 D
- } else {+ Q4 L# b, e% J! h% m0 u# ^! a
- server.begin();
* V0 z& o3 l1 U I. _ - }
9 v( [8 X1 g( u4 w5 j& P - }0 e8 r, j/ E' o2 T6 U) g+ G
- void loop() {) F$ f/ [/ R: H) V* Q) a
- server.handleClient();8 i+ w+ S4 N' K# {) c+ r
- delay(1);% J6 k) M, Y" g; `0 L
- }$ K) Q* K: r4 A! a+ Z. ?+ b; c
- String doGet(String url){: q, T0 C# w5 T, f# v$ V
- if ((WiFiMulti.run() == WL_CONNECTED)) {# M, m; K8 F3 l0 ~1 G
- HTTPClient http;) G4 _( J6 ?8 z7 Z: _! x
- Serial.println("[HTTP] begin...");2 N" L6 n4 @! \ f
- if (url.startsWith("https")) {+ [1 s) m: W, Q
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. l1 [8 J _# Y - } else {
" _! v& ]- b' {- L' j# R - http.begin(url);0 W) R* Q. P2 j2 n; n
- }
* L @, [$ r7 O - Serial.println("[HTTP] GET...");
! \( Y4 G/ B, J; V f7 p - int httpCode = http.GET();" S. s$ x2 ?: L/ l$ f
- if (httpCode > 0) {) S- V6 W0 ^$ U7 V9 p
- Serial.printf("[HTTP] code: %d\n", httpCode);0 R- f5 {0 C1 D' j; a
- if (httpCode == HTTP_CODE_OK) {8 W! Q; g4 `% a$ y8 p2 y5 D8 h& _
- String payload = http.getString();0 D$ z5 w, N t6 d
- Serial.println(payload);# v1 j3 ]* x0 m7 ?5 H
- Serial.print("\r\n");4 D% \5 a* t' [
- return payload;9 X6 ?" b7 C4 \: y; P8 x. s
- }8 C! U* H' D+ K' Z4 D
- } else {
+ F0 \, T* l& z5 H - Serial.printf("[HTTP] GET... failed, error: %s\n",
3 a3 [; ^& S9 J( u/ q* F - http.errorToString(httpCode).c_str());
$ _' T# y' t& D) i# }& [4 r - }$ N; a. ~* C1 v8 g( F) W8 {+ J
- http.end();; d+ V" L2 W. _1 e J
- return "";
! k1 Y8 d+ U) A0 k - }- P* y7 f9 A7 N5 g( V( H
- }# }! l! y7 T/ X/ f) D4 y y: r
- void mainAction() {
& W: y6 S( x, o6 [0 o+ U/ a - // 发送请求: B' F7 D( K# H# a+ Q0 J
- doGet("http://google.cn");
% S( i( I- d v5 X' X - }# {* ^! z' c; @" A
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